Home / 1,355.85-2,025.45-1,082.43

Finding the Fourth Proportional to 1,355.85, 2,025.45 and 1,082.43

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Solution

The fourth proportional to 1,355.85, 2,025.45 and 1,082.43 is: 1,617.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,355.85 : 2,025.45 = 1,082.43 : x
  2. Step 2: Convert to fraction form
    1,355.85/2,025.45 = 1,082.43/x
  3. Step 3: Cross multiply
    1,355.85x = 2,025.45 × 1,082.43
  4. Step 4: Simplify right side
    1,355.85x = 2,192,407.84
  5. Step 5: Solve for x
    x = 2,192,407.84/1,355.85
  6. Step 6: Final answer
    x = 1,617.00

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.