Home / 2,979.26-4,469.48-1,031.20

Finding the Fourth Proportional to 2,979.26, 4,469.48 and 1,031.20

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Solution

The fourth proportional to 2,979.26, 4,469.48 and 1,031.20 is: 1,547.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,979.26 : 4,469.48 = 1,031.20 : x
  2. Step 2: Convert to fraction form
    2,979.26/4,469.48 = 1,031.20/x
  3. Step 3: Cross multiply
    2,979.26x = 4,469.48 × 1,031.20
  4. Step 4: Simplify right side
    2,979.26x = 4,608,927.78
  5. Step 5: Solve for x
    x = 4,608,927.78/2,979.26
  6. Step 6: Final answer
    x = 1,547.00

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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.