Home / 3,135.90-4,327.62-1,877.70

Finding the Fourth Proportional to 3,135.90, 4,327.62 and 1,877.70

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Solution

The fourth proportional to 3,135.90, 4,327.62 and 1,877.70 is: 2,591.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,135.90 : 4,327.62 = 1,877.70 : x
  2. Step 2: Convert to fraction form
    3,135.90/4,327.62 = 1,877.70/x
  3. Step 3: Cross multiply
    3,135.90x = 4,327.62 × 1,877.70
  4. Step 4: Simplify right side
    3,135.90x = 8,125,972.07
  5. Step 5: Solve for x
    x = 8,125,972.07/3,135.90
  6. Step 6: Final answer
    x = 2,591.27

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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.