Home / 2,726.08-4,089.28-1,265.28

Finding the Fourth Proportional to 2,726.08, 4,089.28 and 1,265.28

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Solution

The fourth proportional to 2,726.08, 4,089.28 and 1,265.28 is: 1,897.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,726.08 : 4,089.28 = 1,265.28 : x
  2. Step 2: Convert to fraction form
    2,726.08/4,089.28 = 1,265.28/x
  3. Step 3: Cross multiply
    2,726.08x = 4,089.28 × 1,265.28
  4. Step 4: Simplify right side
    2,726.08x = 5,174,084.20
  5. Step 5: Solve for x
    x = 5,174,084.20/2,726.08
  6. Step 6: Final answer
    x = 1,897.99

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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.