Home / 6,418.28-8,857.14-3,765.18

Finding the Fourth Proportional to 6,418.28, 8,857.14 and 3,765.18

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Solution

The fourth proportional to 6,418.28, 8,857.14 and 3,765.18 is: 5,195.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,418.28 : 8,857.14 = 3,765.18 : x
  2. Step 2: Convert to fraction form
    6,418.28/8,857.14 = 3,765.18/x
  3. Step 3: Cross multiply
    6,418.28x = 8,857.14 × 3,765.18
  4. Step 4: Simplify right side
    6,418.28x = 33,348,726.39
  5. Step 5: Solve for x
    x = 33,348,726.39/6,418.28
  6. Step 6: Final answer
    x = 5,195.90

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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.