Home / 6,139.38-9,209.67-2,440.78

Finding the Fourth Proportional to 6,139.38, 9,209.67 and 2,440.78

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Solution

The fourth proportional to 6,139.38, 9,209.67 and 2,440.78 is: 3,661.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,139.38 : 9,209.67 = 2,440.78 : x
  2. Step 2: Convert to fraction form
    6,139.38/9,209.67 = 2,440.78/x
  3. Step 3: Cross multiply
    6,139.38x = 9,209.67 × 2,440.78
  4. Step 4: Simplify right side
    6,139.38x = 22,478,778.34
  5. Step 5: Solve for x
    x = 22,478,778.34/6,139.38
  6. Step 6: Final answer
    x = 3,661.41

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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.