Home / 5,627.10-7,765.11-3,143.10

Finding the Fourth Proportional to 5,627.10, 7,765.11 and 3,143.10

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Solution

The fourth proportional to 5,627.10, 7,765.11 and 3,143.10 is: 4,337.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,627.10 : 7,765.11 = 3,143.10 : x
  2. Step 2: Convert to fraction form
    5,627.10/7,765.11 = 3,143.10/x
  3. Step 3: Cross multiply
    5,627.10x = 7,765.11 × 3,143.10
  4. Step 4: Simplify right side
    5,627.10x = 24,406,517.24
  5. Step 5: Solve for x
    x = 24,406,517.24/5,627.10
  6. Step 6: Final answer
    x = 4,337.32

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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.