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Finding the Fourth Proportional to 1,675.53, 2,512.71 and 579.60

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Solution

The fourth proportional to 1,675.53, 2,512.71 and 579.60 is: 869.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,675.53 : 2,512.71 = 579.60 : x
  2. Step 2: Convert to fraction form
    1,675.53/2,512.71 = 579.60/x
  3. Step 3: Cross multiply
    1,675.53x = 2,512.71 × 579.60
  4. Step 4: Simplify right side
    1,675.53x = 1,456,366.72
  5. Step 5: Solve for x
    x = 1,456,366.72/1,675.53
  6. Step 6: Final answer
    x = 869.20

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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.