Home / 2,132.28-3,199.24-745.76

Finding the Fourth Proportional to 2,132.28, 3,199.24 and 745.76

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Solution

The fourth proportional to 2,132.28, 3,199.24 and 745.76 is: 1,118.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,132.28 : 3,199.24 = 745.76 : x
  2. Step 2: Convert to fraction form
    2,132.28/3,199.24 = 745.76/x
  3. Step 3: Cross multiply
    2,132.28x = 3,199.24 × 745.76
  4. Step 4: Simplify right side
    2,132.28x = 2,385,865.22
  5. Step 5: Solve for x
    x = 2,385,865.22/2,132.28
  6. Step 6: Final answer
    x = 1,118.93

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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.