Home / 2,427.90-3,641.31-1,178.46

Finding the Fourth Proportional to 2,427.90, 3,641.31 and 1,178.46

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Solution

The fourth proportional to 2,427.90, 3,641.31 and 1,178.46 is: 1,767.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,427.90 : 3,641.31 = 1,178.46 : x
  2. Step 2: Convert to fraction form
    2,427.90/3,641.31 = 1,178.46/x
  3. Step 3: Cross multiply
    2,427.90x = 3,641.31 × 1,178.46
  4. Step 4: Simplify right side
    2,427.90x = 4,291,138.18
  5. Step 5: Solve for x
    x = 4,291,138.18/2,427.90
  6. Step 6: Final answer
    x = 1,767.43

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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.