Home / 3,726.86-5,590.41-1,129.82

Finding the Fourth Proportional to 3,726.86, 5,590.41 and 1,129.82

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Solution

The fourth proportional to 3,726.86, 5,590.41 and 1,129.82 is: 1,694.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,726.86 : 5,590.41 = 1,129.82 : x
  2. Step 2: Convert to fraction form
    3,726.86/5,590.41 = 1,129.82/x
  3. Step 3: Cross multiply
    3,726.86x = 5,590.41 × 1,129.82
  4. Step 4: Simplify right side
    3,726.86x = 6,316,157.03
  5. Step 5: Solve for x
    x = 6,316,157.03/3,726.86
  6. Step 6: Final answer
    x = 1,694.77

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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.