Home / 1,723.68-2,580.48-1,339.20

Finding the Fourth Proportional to 1,723.68, 2,580.48 and 1,339.20

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Solution

The fourth proportional to 1,723.68, 2,580.48 and 1,339.20 is: 2,004.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,723.68 : 2,580.48 = 1,339.20 : x
  2. Step 2: Convert to fraction form
    1,723.68/2,580.48 = 1,339.20/x
  3. Step 3: Cross multiply
    1,723.68x = 2,580.48 × 1,339.20
  4. Step 4: Simplify right side
    1,723.68x = 3,455,778.82
  5. Step 5: Solve for x
    x = 3,455,778.82/1,723.68
  6. Step 6: Final answer
    x = 2,004.88

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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.