Home / 3,726.81-5,590.75-1,129.95

Finding the Fourth Proportional to 3,726.81, 5,590.75 and 1,129.95

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Solution

The fourth proportional to 3,726.81, 5,590.75 and 1,129.95 is: 1,695.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,726.81 : 5,590.75 = 1,129.95 : x
  2. Step 2: Convert to fraction form
    3,726.81/5,590.75 = 1,129.95/x
  3. Step 3: Cross multiply
    3,726.81x = 5,590.75 × 1,129.95
  4. Step 4: Simplify right side
    3,726.81x = 6,317,267.96
  5. Step 5: Solve for x
    x = 6,317,267.96/3,726.81
  6. Step 6: Final answer
    x = 1,695.09

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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.