Home / 2,702.64-4,045.68-1,729.68

Finding the Fourth Proportional to 2,702.64, 4,045.68 and 1,729.68

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Solution

The fourth proportional to 2,702.64, 4,045.68 and 1,729.68 is: 2,589.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,702.64 : 4,045.68 = 1,729.68 : x
  2. Step 2: Convert to fraction form
    2,702.64/4,045.68 = 1,729.68/x
  3. Step 3: Cross multiply
    2,702.64x = 4,045.68 × 1,729.68
  4. Step 4: Simplify right side
    2,702.64x = 6,997,731.78
  5. Step 5: Solve for x
    x = 6,997,731.78/2,702.64
  6. Step 6: Final answer
    x = 2,589.22

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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.