Home / 3,760.81-5,188.29-2,267.90

Finding the Fourth Proportional to 3,760.81, 5,188.29 and 2,267.90

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Solution

The fourth proportional to 3,760.81, 5,188.29 and 2,267.90 is: 3,128.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,760.81 : 5,188.29 = 2,267.90 : x
  2. Step 2: Convert to fraction form
    3,760.81/5,188.29 = 2,267.90/x
  3. Step 3: Cross multiply
    3,760.81x = 5,188.29 × 2,267.90
  4. Step 4: Simplify right side
    3,760.81x = 11,766,521.88
  5. Step 5: Solve for x
    x = 11,766,521.88/3,760.81
  6. Step 6: Final answer
    x = 3,128.72

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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.