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Finding the Fourth Proportional to 2,132.84, 3,199.48 and 572.88

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Solution

The fourth proportional to 2,132.84, 3,199.48 and 572.88 is: 859.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,132.84 : 3,199.48 = 572.88 : x
  2. Step 2: Convert to fraction form
    2,132.84/3,199.48 = 572.88/x
  3. Step 3: Cross multiply
    2,132.84x = 3,199.48 × 572.88
  4. Step 4: Simplify right side
    2,132.84x = 1,832,918.10
  5. Step 5: Solve for x
    x = 1,832,918.10/2,132.84
  6. Step 6: Final answer
    x = 859.38

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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.