Home / 5,126.40-7,072.20-3,236.66

Finding the Fourth Proportional to 5,126.40, 7,072.20 and 3,236.66

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Solution

The fourth proportional to 5,126.40, 7,072.20 and 3,236.66 is: 4,465.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,126.40 : 7,072.20 = 3,236.66 : x
  2. Step 2: Convert to fraction form
    5,126.40/7,072.20 = 3,236.66/x
  3. Step 3: Cross multiply
    5,126.40x = 7,072.20 × 3,236.66
  4. Step 4: Simplify right side
    5,126.40x = 22,890,306.85
  5. Step 5: Solve for x
    x = 22,890,306.85/5,126.40
  6. Step 6: Final answer
    x = 4,465.18

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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.