Home / 3,391.12-5,062.12-2,931.85

Finding the Fourth Proportional to 3,391.12, 5,062.12 and 2,931.85

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Solution

The fourth proportional to 3,391.12, 5,062.12 and 2,931.85 is: 4,376.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,391.12 : 5,062.12 = 2,931.85 : x
  2. Step 2: Convert to fraction form
    3,391.12/5,062.12 = 2,931.85/x
  3. Step 3: Cross multiply
    3,391.12x = 5,062.12 × 2,931.85
  4. Step 4: Simplify right side
    3,391.12x = 14,841,376.52
  5. Step 5: Solve for x
    x = 14,841,376.52/3,391.12
  6. Step 6: Final answer
    x = 4,376.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.