Home / 2,909.67-4,015.42-1,583.45

Finding the Fourth Proportional to 2,909.67, 4,015.42 and 1,583.45

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Solution

The fourth proportional to 2,909.67, 4,015.42 and 1,583.45 is: 2,185.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,909.67 : 4,015.42 = 1,583.45 : x
  2. Step 2: Convert to fraction form
    2,909.67/4,015.42 = 1,583.45/x
  3. Step 3: Cross multiply
    2,909.67x = 4,015.42 × 1,583.45
  4. Step 4: Simplify right side
    2,909.67x = 6,358,216.80
  5. Step 5: Solve for x
    x = 6,358,216.80/2,909.67
  6. Step 6: Final answer
    x = 2,185.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.