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Finding the Fourth Proportional to 6,144.86, 8,479.13 and 3,491.70

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Solution

The fourth proportional to 6,144.86, 8,479.13 and 3,491.70 is: 4,818.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,144.86 : 8,479.13 = 3,491.70 : x
  2. Step 2: Convert to fraction form
    6,144.86/8,479.13 = 3,491.70/x
  3. Step 3: Cross multiply
    6,144.86x = 8,479.13 × 3,491.70
  4. Step 4: Simplify right side
    6,144.86x = 29,606,560.76
  5. Step 5: Solve for x
    x = 29,606,560.76/6,144.86
  6. Step 6: Final answer
    x = 4,818.11

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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.