Home / 3,918.43-5,877.60-1,577.80

Finding the Fourth Proportional to 3,918.43, 5,877.60 and 1,577.80

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Solution

The fourth proportional to 3,918.43, 5,877.60 and 1,577.80 is: 2,366.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,918.43 : 5,877.60 = 1,577.80 : x
  2. Step 2: Convert to fraction form
    3,918.43/5,877.60 = 1,577.80/x
  3. Step 3: Cross multiply
    3,918.43x = 5,877.60 × 1,577.80
  4. Step 4: Simplify right side
    3,918.43x = 9,273,677.28
  5. Step 5: Solve for x
    x = 9,273,677.28/3,918.43
  6. Step 6: Final answer
    x = 2,366.68

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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.