Home / 2,267.50-3,129-1,259.20

Finding the Fourth Proportional to 2,267.50, 3,129 and 1,259.20

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Solution

The fourth proportional to 2,267.50, 3,129 and 1,259.20 is: 1,737.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,267.50 : 3,129 = 1,259.20 : x
  2. Step 2: Convert to fraction form
    2,267.50/3,129 = 1,259.20/x
  3. Step 3: Cross multiply
    2,267.50x = 3,129 × 1,259.20
  4. Step 4: Simplify right side
    2,267.50x = 3,940,036.80
  5. Step 5: Solve for x
    x = 3,940,036.80/2,267.50
  6. Step 6: Final answer
    x = 1,737.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.