Home / 3,590.47-5,385.66-1,125.31

Finding the Fourth Proportional to 3,590.47, 5,385.66 and 1,125.31

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Solution

The fourth proportional to 3,590.47, 5,385.66 and 1,125.31 is: 1,687.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,590.47 : 5,385.66 = 1,125.31 : x
  2. Step 2: Convert to fraction form
    3,590.47/5,385.66 = 1,125.31/x
  3. Step 3: Cross multiply
    3,590.47x = 5,385.66 × 1,125.31
  4. Step 4: Simplify right side
    3,590.47x = 6,060,537.05
  5. Step 5: Solve for x
    x = 6,060,537.05/3,590.47
  6. Step 6: Final answer
    x = 1,687.95

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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.