Home / 5,171.32-7,146.12-4,226.78

Finding the Fourth Proportional to 5,171.32, 7,146.12 and 4,226.78

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Solution

The fourth proportional to 5,171.32, 7,146.12 and 4,226.78 is: 5,840.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,171.32 : 7,146.12 = 4,226.78 : x
  2. Step 2: Convert to fraction form
    5,171.32/7,146.12 = 4,226.78/x
  3. Step 3: Cross multiply
    5,171.32x = 7,146.12 × 4,226.78
  4. Step 4: Simplify right side
    5,171.32x = 30,205,110.81
  5. Step 5: Solve for x
    x = 30,205,110.81/5,171.32
  6. Step 6: Final answer
    x = 5,840.89

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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.