Home / 2,582.40-3,872.50-1,761.32

Finding the Fourth Proportional to 2,582.40, 3,872.50 and 1,761.32

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Solution

The fourth proportional to 2,582.40, 3,872.50 and 1,761.32 is: 2,641.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,582.40 : 3,872.50 = 1,761.32 : x
  2. Step 2: Convert to fraction form
    2,582.40/3,872.50 = 1,761.32/x
  3. Step 3: Cross multiply
    2,582.40x = 3,872.50 × 1,761.32
  4. Step 4: Simplify right side
    2,582.40x = 6,820,711.70
  5. Step 5: Solve for x
    x = 6,820,711.70/2,582.40
  6. Step 6: Final answer
    x = 2,641.23

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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.