Home / 1,716.29-2,575.46-742.39

Finding the Fourth Proportional to 1,716.29, 2,575.46 and 742.39

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Solution

The fourth proportional to 1,716.29, 2,575.46 and 742.39 is: 1,114.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,716.29 : 2,575.46 = 742.39 : x
  2. Step 2: Convert to fraction form
    1,716.29/2,575.46 = 742.39/x
  3. Step 3: Cross multiply
    1,716.29x = 2,575.46 × 742.39
  4. Step 4: Simplify right side
    1,716.29x = 1,911,995.75
  5. Step 5: Solve for x
    x = 1,911,995.75/1,716.29
  6. Step 6: Final answer
    x = 1,114.03

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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.