Home / 7,321.26-10,103.42-4,177.74

Finding the Fourth Proportional to 7,321.26, 10,103.42 and 4,177.74

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Solution

The fourth proportional to 7,321.26, 10,103.42 and 4,177.74 is: 5,765.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,321.26 : 10,103.42 = 4,177.74 : x
  2. Step 2: Convert to fraction form
    7,321.26/10,103.42 = 4,177.74/x
  3. Step 3: Cross multiply
    7,321.26x = 10,103.42 × 4,177.74
  4. Step 4: Simplify right side
    7,321.26x = 42,209,461.87
  5. Step 5: Solve for x
    x = 42,209,461.87/7,321.26
  6. Step 6: Final answer
    x = 5,765.33

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1.5x scale

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.