Home / 3,145.14-4,340.48-1,747.88

Finding the Fourth Proportional to 3,145.14, 4,340.48 and 1,747.88

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Solution

The fourth proportional to 3,145.14, 4,340.48 and 1,747.88 is: 2,412.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,145.14 : 4,340.48 = 1,747.88 : x
  2. Step 2: Convert to fraction form
    3,145.14/4,340.48 = 1,747.88/x
  3. Step 3: Cross multiply
    3,145.14x = 4,340.48 × 1,747.88
  4. Step 4: Simplify right side
    3,145.14x = 7,586,638.18
  5. Step 5: Solve for x
    x = 7,586,638.18/3,145.14
  6. Step 6: Final answer
    x = 2,412.18

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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.