Home / 2,253.15-3,380.49-1,388.07

Finding the Fourth Proportional to 2,253.15, 3,380.49 and 1,388.07

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Solution

The fourth proportional to 2,253.15, 3,380.49 and 1,388.07 is: 2,082.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,253.15 : 3,380.49 = 1,388.07 : x
  2. Step 2: Convert to fraction form
    2,253.15/3,380.49 = 1,388.07/x
  3. Step 3: Cross multiply
    2,253.15x = 3,380.49 × 1,388.07
  4. Step 4: Simplify right side
    2,253.15x = 4,692,356.75
  5. Step 5: Solve for x
    x = 4,692,356.75/2,253.15
  6. Step 6: Final answer
    x = 2,082.58

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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.