Home / 5,286.90-7,925.40-2,002.20

Finding the Fourth Proportional to 5,286.90, 7,925.40 and 2,002.20

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Solution

The fourth proportional to 5,286.90, 7,925.40 and 2,002.20 is: 3,001.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,286.90 : 7,925.40 = 2,002.20 : x
  2. Step 2: Convert to fraction form
    5,286.90/7,925.40 = 2,002.20/x
  3. Step 3: Cross multiply
    5,286.90x = 7,925.40 × 2,002.20
  4. Step 4: Simplify right side
    5,286.90x = 15,868,235.88
  5. Step 5: Solve for x
    x = 15,868,235.88/5,286.90
  6. Step 6: Final answer
    x = 3,001.43

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1.5x scale

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.