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Finding the Fourth Proportional to 3,490.83, 5,235.71 and 1,150.88

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Solution

The fourth proportional to 3,490.83, 5,235.71 and 1,150.88 is: 1,726.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,490.83 : 5,235.71 = 1,150.88 : x
  2. Step 2: Convert to fraction form
    3,490.83/5,235.71 = 1,150.88/x
  3. Step 3: Cross multiply
    3,490.83x = 5,235.71 × 1,150.88
  4. Step 4: Simplify right side
    3,490.83x = 6,025,641.99
  5. Step 5: Solve for x
    x = 6,025,641.99/3,490.83
  6. Step 6: Final answer
    x = 1,726.13

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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.