Home / 1,723.06-2,380.35-1,489.78

Finding the Fourth Proportional to 1,723.06, 2,380.35 and 1,489.78

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Solution

The fourth proportional to 1,723.06, 2,380.35 and 1,489.78 is: 2,058.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,723.06 : 2,380.35 = 1,489.78 : x
  2. Step 2: Convert to fraction form
    1,723.06/2,380.35 = 1,489.78/x
  3. Step 3: Cross multiply
    1,723.06x = 2,380.35 × 1,489.78
  4. Step 4: Simplify right side
    1,723.06x = 3,546,197.82
  5. Step 5: Solve for x
    x = 3,546,197.82/1,723.06
  6. Step 6: Final answer
    x = 2,058.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.