Home / 2,426.90-3,641.42-1,272.38

Finding the Fourth Proportional to 2,426.90, 3,641.42 and 1,272.38

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Solution

The fourth proportional to 2,426.90, 3,641.42 and 1,272.38 is: 1,909.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,426.90 : 3,641.42 = 1,272.38 : x
  2. Step 2: Convert to fraction form
    2,426.90/3,641.42 = 1,272.38/x
  3. Step 3: Cross multiply
    2,426.90x = 3,641.42 × 1,272.38
  4. Step 4: Simplify right side
    2,426.90x = 4,633,254.95
  5. Step 5: Solve for x
    x = 4,633,254.95/2,426.90
  6. Step 6: Final answer
    x = 1,909.13

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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.