Home / 5,327.92-7,990.98-1,431.46

Finding the Fourth Proportional to 5,327.92, 7,990.98 and 1,431.46

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Solution

The fourth proportional to 5,327.92, 7,990.98 and 1,431.46 is: 2,146.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,327.92 : 7,990.98 = 1,431.46 : x
  2. Step 2: Convert to fraction form
    5,327.92/7,990.98 = 1,431.46/x
  3. Step 3: Cross multiply
    5,327.92x = 7,990.98 × 1,431.46
  4. Step 4: Simplify right side
    5,327.92x = 11,438,768.23
  5. Step 5: Solve for x
    x = 11,438,768.23/5,327.92
  6. Step 6: Final answer
    x = 2,146.95

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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.