Home / 2,871.20-3,962.69-1,752.79

Finding the Fourth Proportional to 2,871.20, 3,962.69 and 1,752.79

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Solution

The fourth proportional to 2,871.20, 3,962.69 and 1,752.79 is: 2,419.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,871.20 : 3,962.69 = 1,752.79 : x
  2. Step 2: Convert to fraction form
    2,871.20/3,962.69 = 1,752.79/x
  3. Step 3: Cross multiply
    2,871.20x = 3,962.69 × 1,752.79
  4. Step 4: Simplify right side
    2,871.20x = 6,945,749.12
  5. Step 5: Solve for x
    x = 6,945,749.12/2,871.20
  6. Step 6: Final answer
    x = 2,419.11

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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.