Home / 7,146.60-9,862.20-4,002.90

Finding the Fourth Proportional to 7,146.60, 9,862.20 and 4,002.90

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Solution

The fourth proportional to 7,146.60, 9,862.20 and 4,002.90 is: 5,523.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,146.60 : 9,862.20 = 4,002.90 : x
  2. Step 2: Convert to fraction form
    7,146.60/9,862.20 = 4,002.90/x
  3. Step 3: Cross multiply
    7,146.60x = 9,862.20 × 4,002.90
  4. Step 4: Simplify right side
    7,146.60x = 39,477,400.38
  5. Step 5: Solve for x
    x = 39,477,400.38/7,146.60
  6. Step 6: Final answer
    x = 5,523.94

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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.