Home / 5,007.85-7,511.20-1,310.43

Finding the Fourth Proportional to 5,007.85, 7,511.20 and 1,310.43

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Solution

The fourth proportional to 5,007.85, 7,511.20 and 1,310.43 is: 1,965.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,007.85 : 7,511.20 = 1,310.43 : x
  2. Step 2: Convert to fraction form
    5,007.85/7,511.20 = 1,310.43/x
  3. Step 3: Cross multiply
    5,007.85x = 7,511.20 × 1,310.43
  4. Step 4: Simplify right side
    5,007.85x = 9,842,926.71
  5. Step 5: Solve for x
    x = 9,842,926.71/5,007.85
  6. Step 6: Final answer
    x = 1,965.50

Related Problems

Find fourth proportional to 2,503.92, 3,755.60 and 655.22
Half scale
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Double scale
Find fourth proportional to 5,008.85, 7,512.70 and 1,311.43
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.