Home / 2,979.41-4,469.31-1,031.76

Finding the Fourth Proportional to 2,979.41, 4,469.31 and 1,031.76

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Solution

The fourth proportional to 2,979.41, 4,469.31 and 1,031.76 is: 1,547.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,979.41 : 4,469.31 = 1,031.76 : x
  2. Step 2: Convert to fraction form
    2,979.41/4,469.31 = 1,031.76/x
  3. Step 3: Cross multiply
    2,979.41x = 4,469.31 × 1,031.76
  4. Step 4: Simplify right side
    2,979.41x = 4,611,255.29
  5. Step 5: Solve for x
    x = 4,611,255.29/2,979.41
  6. Step 6: Final answer
    x = 1,547.71

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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.