Home / 1,625.20-2,439.16-1,472.11

Finding the Fourth Proportional to 1,625.20, 2,439.16 and 1,472.11

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Solution

The fourth proportional to 1,625.20, 2,439.16 and 1,472.11 is: 2,209.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,625.20 : 2,439.16 = 1,472.11 : x
  2. Step 2: Convert to fraction form
    1,625.20/2,439.16 = 1,472.11/x
  3. Step 3: Cross multiply
    1,625.20x = 2,439.16 × 1,472.11
  4. Step 4: Simplify right side
    1,625.20x = 3,590,702.05
  5. Step 5: Solve for x
    x = 3,590,702.05/1,625.20
  6. Step 6: Final answer
    x = 2,209.39

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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.