Home / 4,129.76-5,701.92-3,008.72

Finding the Fourth Proportional to 4,129.76, 5,701.92 and 3,008.72

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Solution

The fourth proportional to 4,129.76, 5,701.92 and 3,008.72 is: 4,154.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,129.76 : 5,701.92 = 3,008.72 : x
  2. Step 2: Convert to fraction form
    4,129.76/5,701.92 = 3,008.72/x
  3. Step 3: Cross multiply
    4,129.76x = 5,701.92 × 3,008.72
  4. Step 4: Simplify right side
    4,129.76x = 17,155,480.74
  5. Step 5: Solve for x
    x = 17,155,480.74/4,129.76
  6. Step 6: Final answer
    x = 4,154.11

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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.