Home / 1,320.44-1,822.49-1,099.18

Finding the Fourth Proportional to 1,320.44, 1,822.49 and 1,099.18

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Solution

The fourth proportional to 1,320.44, 1,822.49 and 1,099.18 is: 1,517.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320.44 : 1,822.49 = 1,099.18 : x
  2. Step 2: Convert to fraction form
    1,320.44/1,822.49 = 1,099.18/x
  3. Step 3: Cross multiply
    1,320.44x = 1,822.49 × 1,099.18
  4. Step 4: Simplify right side
    1,320.44x = 2,003,242.75
  5. Step 5: Solve for x
    x = 2,003,242.75/1,320.44
  6. Step 6: Final answer
    x = 1,517.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.