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Finding the Fourth Proportional to 6,124.68, 8,447.58 and 3,853.85

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Solution

The fourth proportional to 6,124.68, 8,447.58 and 3,853.85 is: 5,315.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,124.68 : 8,447.58 = 3,853.85 : x
  2. Step 2: Convert to fraction form
    6,124.68/8,447.58 = 3,853.85/x
  3. Step 3: Cross multiply
    6,124.68x = 8,447.58 × 3,853.85
  4. Step 4: Simplify right side
    6,124.68x = 32,555,663.95
  5. Step 5: Solve for x
    x = 32,555,663.95/6,124.68
  6. Step 6: Final answer
    x = 5,315.49

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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.