Home / 2,177.30-3,266.42-716.40

Finding the Fourth Proportional to 2,177.30, 3,266.42 and 716.40

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Solution

The fourth proportional to 2,177.30, 3,266.42 and 716.40 is: 1,074.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,177.30 : 3,266.42 = 716.40 : x
  2. Step 2: Convert to fraction form
    2,177.30/3,266.42 = 716.40/x
  3. Step 3: Cross multiply
    2,177.30x = 3,266.42 × 716.40
  4. Step 4: Simplify right side
    2,177.30x = 2,340,059.71
  5. Step 5: Solve for x
    x = 2,340,059.71/2,177.30
  6. Step 6: Final answer
    x = 1,074.76

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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.