Home / 1,458.18-2,185.92-484.11

Finding the Fourth Proportional to 1,458.18, 2,185.92 and 484.11

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Solution

The fourth proportional to 1,458.18, 2,185.92 and 484.11 is: 725.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,458.18 : 2,185.92 = 484.11 : x
  2. Step 2: Convert to fraction form
    1,458.18/2,185.92 = 484.11/x
  3. Step 3: Cross multiply
    1,458.18x = 2,185.92 × 484.11
  4. Step 4: Simplify right side
    1,458.18x = 1,058,225.73
  5. Step 5: Solve for x
    x = 1,058,225.73/1,458.18
  6. Step 6: Final answer
    x = 725.72

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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.