Home / 7,240.71-9,989.85-4,053.53

Finding the Fourth Proportional to 7,240.71, 9,989.85 and 4,053.53

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Solution

The fourth proportional to 7,240.71, 9,989.85 and 4,053.53 is: 5,592.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,240.71 : 9,989.85 = 4,053.53 : x
  2. Step 2: Convert to fraction form
    7,240.71/9,989.85 = 4,053.53/x
  3. Step 3: Cross multiply
    7,240.71x = 9,989.85 × 4,053.53
  4. Step 4: Simplify right side
    7,240.71x = 40,494,215.58
  5. Step 5: Solve for x
    x = 40,494,215.58/7,240.71
  6. Step 6: Final answer
    x = 5,592.58

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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.