Home / 3,629.90-5,445.51-1,257.86

Finding the Fourth Proportional to 3,629.90, 5,445.51 and 1,257.86

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Solution

The fourth proportional to 3,629.90, 5,445.51 and 1,257.86 is: 1,887.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,629.90 : 5,445.51 = 1,257.86 : x
  2. Step 2: Convert to fraction form
    3,629.90/5,445.51 = 1,257.86/x
  3. Step 3: Cross multiply
    3,629.90x = 5,445.51 × 1,257.86
  4. Step 4: Simplify right side
    3,629.90x = 6,849,689.21
  5. Step 5: Solve for x
    x = 6,849,689.21/3,629.90
  6. Step 6: Final answer
    x = 1,887.02

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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.