Home / 3,590.31-5,385.31-1,125.07

Finding the Fourth Proportional to 3,590.31, 5,385.31 and 1,125.07

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Solution

The fourth proportional to 3,590.31, 5,385.31 and 1,125.07 is: 1,687.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,590.31 : 5,385.31 = 1,125.07 : x
  2. Step 2: Convert to fraction form
    3,590.31/5,385.31 = 1,125.07/x
  3. Step 3: Cross multiply
    3,590.31x = 5,385.31 × 1,125.07
  4. Step 4: Simplify right side
    3,590.31x = 6,058,845.10
  5. Step 5: Solve for x
    x = 6,058,845.10/3,590.31
  6. Step 6: Final answer
    x = 1,687.56

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1.5x scale

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.