Home / 3,758.30-5,187.57-2,431.97

Finding the Fourth Proportional to 3,758.30, 5,187.57 and 2,431.97

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Solution

The fourth proportional to 3,758.30, 5,187.57 and 2,431.97 is: 3,356.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,758.30 : 5,187.57 = 2,431.97 : x
  2. Step 2: Convert to fraction form
    3,758.30/5,187.57 = 2,431.97/x
  3. Step 3: Cross multiply
    3,758.30x = 5,187.57 × 2,431.97
  4. Step 4: Simplify right side
    3,758.30x = 12,616,014.61
  5. Step 5: Solve for x
    x = 12,616,014.61/3,758.30
  6. Step 6: Final answer
    x = 3,356.84

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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.