Home / 7,146.78-9,862.26-4,162.61

Finding the Fourth Proportional to 7,146.78, 9,862.26 and 4,162.61

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Solution

The fourth proportional to 7,146.78, 9,862.26 and 4,162.61 is: 5,744.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,146.78 : 9,862.26 = 4,162.61 : x
  2. Step 2: Convert to fraction form
    7,146.78/9,862.26 = 4,162.61/x
  3. Step 3: Cross multiply
    7,146.78x = 9,862.26 × 4,162.61
  4. Step 4: Simplify right side
    7,146.78x = 41,052,692.79
  5. Step 5: Solve for x
    x = 41,052,692.79/7,146.78
  6. Step 6: Final answer
    x = 5,744.22

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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.