Home / 5,712.38-8,569.83-2,428.28

Finding the Fourth Proportional to 5,712.38, 8,569.83 and 2,428.28

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Solution

The fourth proportional to 5,712.38, 8,569.83 and 2,428.28 is: 3,642.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,712.38 : 8,569.83 = 2,428.28 : x
  2. Step 2: Convert to fraction form
    5,712.38/8,569.83 = 2,428.28/x
  3. Step 3: Cross multiply
    5,712.38x = 8,569.83 × 2,428.28
  4. Step 4: Simplify right side
    5,712.38x = 20,809,946.79
  5. Step 5: Solve for x
    x = 20,809,946.79/5,712.38
  6. Step 6: Final answer
    x = 3,642.96

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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.