Home / 5,490.13-8,235.48-3,149.51

Finding the Fourth Proportional to 5,490.13, 8,235.48 and 3,149.51

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Solution

The fourth proportional to 5,490.13, 8,235.48 and 3,149.51 is: 4,724.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,490.13 : 8,235.48 = 3,149.51 : x
  2. Step 2: Convert to fraction form
    5,490.13/8,235.48 = 3,149.51/x
  3. Step 3: Cross multiply
    5,490.13x = 8,235.48 × 3,149.51
  4. Step 4: Simplify right side
    5,490.13x = 25,937,726.61
  5. Step 5: Solve for x
    x = 25,937,726.61/5,490.13
  6. Step 6: Final answer
    x = 4,724.43

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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.