Home / 1,773.12-2,655.36-1,721.28

Finding the Fourth Proportional to 1,773.12, 2,655.36 and 1,721.28

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Solution

The fourth proportional to 1,773.12, 2,655.36 and 1,721.28 is: 2,577.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,773.12 : 2,655.36 = 1,721.28 : x
  2. Step 2: Convert to fraction form
    1,773.12/2,655.36 = 1,721.28/x
  3. Step 3: Cross multiply
    1,773.12x = 2,655.36 × 1,721.28
  4. Step 4: Simplify right side
    1,773.12x = 4,570,618.06
  5. Step 5: Solve for x
    x = 4,570,618.06/1,773.12
  6. Step 6: Final answer
    x = 2,577.73

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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.