Home / 1,822.95-2,734.65-727.29

Finding the Fourth Proportional to 1,822.95, 2,734.65 and 727.29

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Solution

The fourth proportional to 1,822.95, 2,734.65 and 727.29 is: 1,091.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,822.95 : 2,734.65 = 727.29 : x
  2. Step 2: Convert to fraction form
    1,822.95/2,734.65 = 727.29/x
  3. Step 3: Cross multiply
    1,822.95x = 2,734.65 × 727.29
  4. Step 4: Simplify right side
    1,822.95x = 1,988,883.60
  5. Step 5: Solve for x
    x = 1,988,883.60/1,822.95
  6. Step 6: Final answer
    x = 1,091.02

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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.