Home / 2,134.73-3,201.28-1,038.40

Finding the Fourth Proportional to 2,134.73, 3,201.28 and 1,038.40

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Solution

The fourth proportional to 2,134.73, 3,201.28 and 1,038.40 is: 1,557.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,134.73 : 3,201.28 = 1,038.40 : x
  2. Step 2: Convert to fraction form
    2,134.73/3,201.28 = 1,038.40/x
  3. Step 3: Cross multiply
    2,134.73x = 3,201.28 × 1,038.40
  4. Step 4: Simplify right side
    2,134.73x = 3,324,209.15
  5. Step 5: Solve for x
    x = 3,324,209.15/2,134.73
  6. Step 6: Final answer
    x = 1,557.20

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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.