Home / 4,129.20-6,192.72-1,530.72

Finding the Fourth Proportional to 4,129.20, 6,192.72 and 1,530.72

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Solution

The fourth proportional to 4,129.20, 6,192.72 and 1,530.72 is: 2,295.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,129.20 : 6,192.72 = 1,530.72 : x
  2. Step 2: Convert to fraction form
    4,129.20/6,192.72 = 1,530.72/x
  3. Step 3: Cross multiply
    4,129.20x = 6,192.72 × 1,530.72
  4. Step 4: Simplify right side
    4,129.20x = 9,479,320.36
  5. Step 5: Solve for x
    x = 9,479,320.36/4,129.20
  6. Step 6: Final answer
    x = 2,295.68

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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.