Home / 1,132.12-1,697.28-482.40

Finding the Fourth Proportional to 1,132.12, 1,697.28 and 482.40

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Solution

The fourth proportional to 1,132.12, 1,697.28 and 482.40 is: 723.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,132.12 : 1,697.28 = 482.40 : x
  2. Step 2: Convert to fraction form
    1,132.12/1,697.28 = 482.40/x
  3. Step 3: Cross multiply
    1,132.12x = 1,697.28 × 482.40
  4. Step 4: Simplify right side
    1,132.12x = 818,767.87
  5. Step 5: Solve for x
    x = 818,767.87/1,132.12
  6. Step 6: Final answer
    x = 723.22

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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.