Home / 2,876.19-4,315.10-928.41

Finding the Fourth Proportional to 2,876.19, 4,315.10 and 928.41

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Solution

The fourth proportional to 2,876.19, 4,315.10 and 928.41 is: 1,392.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,876.19 : 4,315.10 = 928.41 : x
  2. Step 2: Convert to fraction form
    2,876.19/4,315.10 = 928.41/x
  3. Step 3: Cross multiply
    2,876.19x = 4,315.10 × 928.41
  4. Step 4: Simplify right side
    2,876.19x = 4,006,177.35
  5. Step 5: Solve for x
    x = 4,006,177.35/2,876.19
  6. Step 6: Final answer
    x = 1,392.88

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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.