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Finding the Fourth Proportional to 6,153.22, 8,491.47 and 3,358.78

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Solution

The fourth proportional to 6,153.22, 8,491.47 and 3,358.78 is: 4,635.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,153.22 : 8,491.47 = 3,358.78 : x
  2. Step 2: Convert to fraction form
    6,153.22/8,491.47 = 3,358.78/x
  3. Step 3: Cross multiply
    6,153.22x = 8,491.47 × 3,358.78
  4. Step 4: Simplify right side
    6,153.22x = 28,520,979.61
  5. Step 5: Solve for x
    x = 28,520,979.61/6,153.22
  6. Step 6: Final answer
    x = 4,635.13

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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.