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Finding the Fourth Proportional to 6,131.68, 8,462.15 and 3,479.74

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Solution

The fourth proportional to 6,131.68, 8,462.15 and 3,479.74 is: 4,802.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,131.68 : 8,462.15 = 3,479.74 : x
  2. Step 2: Convert to fraction form
    6,131.68/8,462.15 = 3,479.74/x
  3. Step 3: Cross multiply
    6,131.68x = 8,462.15 × 3,479.74
  4. Step 4: Simplify right side
    6,131.68x = 29,446,081.84
  5. Step 5: Solve for x
    x = 29,446,081.84/6,131.68
  6. Step 6: Final answer
    x = 4,802.29

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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.