Home / 6,139.60-9,211.56-3,217.84

Finding the Fourth Proportional to 6,139.60, 9,211.56 and 3,217.84

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Solution

The fourth proportional to 6,139.60, 9,211.56 and 3,217.84 is: 4,827.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,139.60 : 9,211.56 = 3,217.84 : x
  2. Step 2: Convert to fraction form
    6,139.60/9,211.56 = 3,217.84/x
  3. Step 3: Cross multiply
    6,139.60x = 9,211.56 × 3,217.84
  4. Step 4: Simplify right side
    6,139.60x = 29,641,326.23
  5. Step 5: Solve for x
    x = 29,641,326.23/6,139.60
  6. Step 6: Final answer
    x = 4,827.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.