Home / 6,135.12-8,470.38-3,778.62

Finding the Fourth Proportional to 6,135.12, 8,470.38 and 3,778.62

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Solution

The fourth proportional to 6,135.12, 8,470.38 and 3,778.62 is: 5,216.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,135.12 : 8,470.38 = 3,778.62 : x
  2. Step 2: Convert to fraction form
    6,135.12/8,470.38 = 3,778.62/x
  3. Step 3: Cross multiply
    6,135.12x = 8,470.38 × 3,778.62
  4. Step 4: Simplify right side
    6,135.12x = 32,006,347.28
  5. Step 5: Solve for x
    x = 32,006,347.28/6,135.12
  6. Step 6: Final answer
    x = 5,216.91

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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.