Home / 6,214.28-8,575.68-3,419.78

Finding the Fourth Proportional to 6,214.28, 8,575.68 and 3,419.78

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Solution

The fourth proportional to 6,214.28, 8,575.68 and 3,419.78 is: 4,719.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,214.28 : 8,575.68 = 3,419.78 : x
  2. Step 2: Convert to fraction form
    6,214.28/8,575.68 = 3,419.78/x
  3. Step 3: Cross multiply
    6,214.28x = 8,575.68 × 3,419.78
  4. Step 4: Simplify right side
    6,214.28x = 29,326,938.95
  5. Step 5: Solve for x
    x = 29,326,938.95/6,214.28
  6. Step 6: Final answer
    x = 4,719.28

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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.