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Finding the Fourth Proportional to 1,568.96, 2,351.84 and 702.72

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Solution

The fourth proportional to 1,568.96, 2,351.84 and 702.72 is: 1,053.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,568.96 : 2,351.84 = 702.72 : x
  2. Step 2: Convert to fraction form
    1,568.96/2,351.84 = 702.72/x
  3. Step 3: Cross multiply
    1,568.96x = 2,351.84 × 702.72
  4. Step 4: Simplify right side
    1,568.96x = 1,652,685.00
  5. Step 5: Solve for x
    x = 1,652,685.00/1,568.96
  6. Step 6: Final answer
    x = 1,053.36

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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.