Home / 2,871.68-4,306.70-1,022.90

Finding the Fourth Proportional to 2,871.68, 4,306.70 and 1,022.90

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Solution

The fourth proportional to 2,871.68, 4,306.70 and 1,022.90 is: 1,534.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,871.68 : 4,306.70 = 1,022.90 : x
  2. Step 2: Convert to fraction form
    2,871.68/4,306.70 = 1,022.90/x
  3. Step 3: Cross multiply
    2,871.68x = 4,306.70 × 1,022.90
  4. Step 4: Simplify right side
    2,871.68x = 4,405,304.45
  5. Step 5: Solve for x
    x = 4,405,304.45/2,871.68
  6. Step 6: Final answer
    x = 1,534.05

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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.