Home / 3,061.28-4,593.40-981.60

Finding the Fourth Proportional to 3,061.28, 4,593.40 and 981.60

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Solution

The fourth proportional to 3,061.28, 4,593.40 and 981.60 is: 1,472.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,061.28 : 4,593.40 = 981.60 : x
  2. Step 2: Convert to fraction form
    3,061.28/4,593.40 = 981.60/x
  3. Step 3: Cross multiply
    3,061.28x = 4,593.40 × 981.60
  4. Step 4: Simplify right side
    3,061.28x = 4,508,881.44
  5. Step 5: Solve for x
    x = 4,508,881.44/3,061.28
  6. Step 6: Final answer
    x = 1,472.87

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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.