Home / 7,239.17-9,989.39-4,052.30

Finding the Fourth Proportional to 7,239.17, 9,989.39 and 4,052.30

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Solution

The fourth proportional to 7,239.17, 9,989.39 and 4,052.30 is: 5,591.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,239.17 : 9,989.39 = 4,052.30 : x
  2. Step 2: Convert to fraction form
    7,239.17/9,989.39 = 4,052.30/x
  3. Step 3: Cross multiply
    7,239.17x = 9,989.39 × 4,052.30
  4. Step 4: Simplify right side
    7,239.17x = 40,479,965.28
  5. Step 5: Solve for x
    x = 40,479,965.28/7,239.17
  6. Step 6: Final answer
    x = 5,591.79

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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.