Home / 1,447.06-2,169.56-716.46

Finding the Fourth Proportional to 1,447.06, 2,169.56 and 716.46

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Solution

The fourth proportional to 1,447.06, 2,169.56 and 716.46 is: 1,074.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,447.06 : 2,169.56 = 716.46 : x
  2. Step 2: Convert to fraction form
    1,447.06/2,169.56 = 716.46/x
  3. Step 3: Cross multiply
    1,447.06x = 2,169.56 × 716.46
  4. Step 4: Simplify right side
    1,447.06x = 1,554,402.96
  5. Step 5: Solve for x
    x = 1,554,402.96/1,447.06
  6. Step 6: Final answer
    x = 1,074.18

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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.