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Finding the Fourth Proportional to 6,404.24, 8,838.12 and 3,751.28

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Solution

The fourth proportional to 6,404.24, 8,838.12 and 3,751.28 is: 5,176.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,404.24 : 8,838.12 = 3,751.28 : x
  2. Step 2: Convert to fraction form
    6,404.24/8,838.12 = 3,751.28/x
  3. Step 3: Cross multiply
    6,404.24x = 8,838.12 × 3,751.28
  4. Step 4: Simplify right side
    6,404.24x = 33,154,262.79
  5. Step 5: Solve for x
    x = 33,154,262.79/6,404.24
  6. Step 6: Final answer
    x = 5,176.92

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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.