Home / 2,641.20-3,967.92-1,657.08

Finding the Fourth Proportional to 2,641.20, 3,967.92 and 1,657.08

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Solution

The fourth proportional to 2,641.20, 3,967.92 and 1,657.08 is: 2,489.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,641.20 : 3,967.92 = 1,657.08 : x
  2. Step 2: Convert to fraction form
    2,641.20/3,967.92 = 1,657.08/x
  3. Step 3: Cross multiply
    2,641.20x = 3,967.92 × 1,657.08
  4. Step 4: Simplify right side
    2,641.20x = 6,575,160.87
  5. Step 5: Solve for x
    x = 6,575,160.87/2,641.20
  6. Step 6: Final answer
    x = 2,489.46

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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.