Home / 2,876.28-4,315.50-1,488.71

Finding the Fourth Proportional to 2,876.28, 4,315.50 and 1,488.71

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Solution

The fourth proportional to 2,876.28, 4,315.50 and 1,488.71 is: 2,233.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,876.28 : 4,315.50 = 1,488.71 : x
  2. Step 2: Convert to fraction form
    2,876.28/4,315.50 = 1,488.71/x
  3. Step 3: Cross multiply
    2,876.28x = 4,315.50 × 1,488.71
  4. Step 4: Simplify right side
    2,876.28x = 6,424,506.43
  5. Step 5: Solve for x
    x = 6,424,506.43/2,876.28
  6. Step 6: Final answer
    x = 2,233.62

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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.