Home / 5,305.70-7,958.55-3,116.90

Finding the Fourth Proportional to 5,305.70, 7,958.55 and 3,116.90

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Solution

The fourth proportional to 5,305.70, 7,958.55 and 3,116.90 is: 4,675.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,305.70 : 7,958.55 = 3,116.90 : x
  2. Step 2: Convert to fraction form
    5,305.70/7,958.55 = 3,116.90/x
  3. Step 3: Cross multiply
    5,305.70x = 7,958.55 × 3,116.90
  4. Step 4: Simplify right side
    5,305.70x = 24,806,004.50
  5. Step 5: Solve for x
    x = 24,806,004.50/5,305.70
  6. Step 6: Final answer
    x = 4,675.35

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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.