Home / 6,135.19-8,470.68-3,869.95

Finding the Fourth Proportional to 6,135.19, 8,470.68 and 3,869.95

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Solution

The fourth proportional to 6,135.19, 8,470.68 and 3,869.95 is: 5,343.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,135.19 : 8,470.68 = 3,869.95 : x
  2. Step 2: Convert to fraction form
    6,135.19/8,470.68 = 3,869.95/x
  3. Step 3: Cross multiply
    6,135.19x = 8,470.68 × 3,869.95
  4. Step 4: Simplify right side
    6,135.19x = 32,781,108.07
  5. Step 5: Solve for x
    x = 32,781,108.07/6,135.19
  6. Step 6: Final answer
    x = 5,343.13

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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.