Home / 3,140.44-4,712.19-1,292.11

Finding the Fourth Proportional to 3,140.44, 4,712.19 and 1,292.11

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Solution

The fourth proportional to 3,140.44, 4,712.19 and 1,292.11 is: 1,938.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,140.44 : 4,712.19 = 1,292.11 : x
  2. Step 2: Convert to fraction form
    3,140.44/4,712.19 = 1,292.11/x
  3. Step 3: Cross multiply
    3,140.44x = 4,712.19 × 1,292.11
  4. Step 4: Simplify right side
    3,140.44x = 6,088,667.82
  5. Step 5: Solve for x
    x = 6,088,667.82/3,140.44
  6. Step 6: Final answer
    x = 1,938.79

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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.