Home / 5,375.10-7,417.64-3,136.55

Finding the Fourth Proportional to 5,375.10, 7,417.64 and 3,136.55

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Solution

The fourth proportional to 5,375.10, 7,417.64 and 3,136.55 is: 4,328.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,375.10 : 7,417.64 = 3,136.55 : x
  2. Step 2: Convert to fraction form
    5,375.10/7,417.64 = 3,136.55/x
  3. Step 3: Cross multiply
    5,375.10x = 7,417.64 × 3,136.55
  4. Step 4: Simplify right side
    5,375.10x = 23,265,745.97
  5. Step 5: Solve for x
    x = 23,265,745.97/5,375.10
  6. Step 6: Final answer
    x = 4,328.43

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1.5x scale

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.