Home / 1,723.92-2,579.40-1,031.28

Finding the Fourth Proportional to 1,723.92, 2,579.40 and 1,031.28

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Solution

The fourth proportional to 1,723.92, 2,579.40 and 1,031.28 is: 1,543.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,723.92 : 2,579.40 = 1,031.28 : x
  2. Step 2: Convert to fraction form
    1,723.92/2,579.40 = 1,031.28/x
  3. Step 3: Cross multiply
    1,723.92x = 2,579.40 × 1,031.28
  4. Step 4: Simplify right side
    1,723.92x = 2,660,083.63
  5. Step 5: Solve for x
    x = 2,660,083.63/1,723.92
  6. Step 6: Final answer
    x = 1,543.04

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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.