Home / 6,240.72-9,353.28-3,121.62

Finding the Fourth Proportional to 6,240.72, 9,353.28 and 3,121.62

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Solution

The fourth proportional to 6,240.72, 9,353.28 and 3,121.62 is: 4,678.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,240.72 : 9,353.28 = 3,121.62 : x
  2. Step 2: Convert to fraction form
    6,240.72/9,353.28 = 3,121.62/x
  3. Step 3: Cross multiply
    6,240.72x = 9,353.28 × 3,121.62
  4. Step 4: Simplify right side
    6,240.72x = 29,197,385.91
  5. Step 5: Solve for x
    x = 29,197,385.91/6,240.72
  6. Step 6: Final answer
    x = 4,678.53

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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.