Home / 1,625.38-2,436.63-1,242.34

Finding the Fourth Proportional to 1,625.38, 2,436.63 and 1,242.34

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Solution

The fourth proportional to 1,625.38, 2,436.63 and 1,242.34 is: 1,862.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,625.38 : 2,436.63 = 1,242.34 : x
  2. Step 2: Convert to fraction form
    1,625.38/2,436.63 = 1,242.34/x
  3. Step 3: Cross multiply
    1,625.38x = 2,436.63 × 1,242.34
  4. Step 4: Simplify right side
    1,625.38x = 3,027,122.91
  5. Step 5: Solve for x
    x = 3,027,122.91/1,625.38
  6. Step 6: Final answer
    x = 1,862.41

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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.