Home / 7,177.08-10,761.21-2,789.41

Finding the Fourth Proportional to 7,177.08, 10,761.21 and 2,789.41

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Solution

The fourth proportional to 7,177.08, 10,761.21 and 2,789.41 is: 4,182.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,177.08 : 10,761.21 = 2,789.41 : x
  2. Step 2: Convert to fraction form
    7,177.08/10,761.21 = 2,789.41/x
  3. Step 3: Cross multiply
    7,177.08x = 10,761.21 × 2,789.41
  4. Step 4: Simplify right side
    7,177.08x = 30,017,426.79
  5. Step 5: Solve for x
    x = 30,017,426.79/7,177.08
  6. Step 6: Final answer
    x = 4,182.40

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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.