Home / 2,871.18-4,306.29-923.13

Finding the Fourth Proportional to 2,871.18, 4,306.29 and 923.13

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Solution

The fourth proportional to 2,871.18, 4,306.29 and 923.13 is: 1,384.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,871.18 : 4,306.29 = 923.13 : x
  2. Step 2: Convert to fraction form
    2,871.18/4,306.29 = 923.13/x
  3. Step 3: Cross multiply
    2,871.18x = 4,306.29 × 923.13
  4. Step 4: Simplify right side
    2,871.18x = 3,975,265.49
  5. Step 5: Solve for x
    x = 3,975,265.49/2,871.18
  6. Step 6: Final answer
    x = 1,384.54

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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.