Home / 4,129.28-6,189.12-1,530.56

Finding the Fourth Proportional to 4,129.28, 6,189.12 and 1,530.56

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Solution

The fourth proportional to 4,129.28, 6,189.12 and 1,530.56 is: 2,294.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,129.28 : 6,189.12 = 1,530.56 : x
  2. Step 2: Convert to fraction form
    4,129.28/6,189.12 = 1,530.56/x
  3. Step 3: Cross multiply
    4,129.28x = 6,189.12 × 1,530.56
  4. Step 4: Simplify right side
    4,129.28x = 9,472,819.51
  5. Step 5: Solve for x
    x = 9,472,819.51/4,129.28
  6. Step 6: Final answer
    x = 2,294.06

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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.