Home / 2,088.32-3,132.12-789.68

Finding the Fourth Proportional to 2,088.32, 3,132.12 and 789.68

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Solution

The fourth proportional to 2,088.32, 3,132.12 and 789.68 is: 1,184.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,088.32 : 3,132.12 = 789.68 : x
  2. Step 2: Convert to fraction form
    2,088.32/3,132.12 = 789.68/x
  3. Step 3: Cross multiply
    2,088.32x = 3,132.12 × 789.68
  4. Step 4: Simplify right side
    2,088.32x = 2,473,372.52
  5. Step 5: Solve for x
    x = 2,473,372.52/2,088.32
  6. Step 6: Final answer
    x = 1,184.38

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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.