Home / 2,627.60-3,941.45-1,126.43

Finding the Fourth Proportional to 2,627.60, 3,941.45 and 1,126.43

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Solution

The fourth proportional to 2,627.60, 3,941.45 and 1,126.43 is: 1,689.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,627.60 : 3,941.45 = 1,126.43 : x
  2. Step 2: Convert to fraction form
    2,627.60/3,941.45 = 1,126.43/x
  3. Step 3: Cross multiply
    2,627.60x = 3,941.45 × 1,126.43
  4. Step 4: Simplify right side
    2,627.60x = 4,439,742.18
  5. Step 5: Solve for x
    x = 4,439,742.18/2,627.60
  6. Step 6: Final answer
    x = 1,689.66

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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.