Home / 7,321.40-10,103.56-4,488.76

Finding the Fourth Proportional to 7,321.40, 10,103.56 and 4,488.76

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Solution

The fourth proportional to 7,321.40, 10,103.56 and 4,488.76 is: 6,194.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,321.40 : 10,103.56 = 4,488.76 : x
  2. Step 2: Convert to fraction form
    7,321.40/10,103.56 = 4,488.76/x
  3. Step 3: Cross multiply
    7,321.40x = 10,103.56 × 4,488.76
  4. Step 4: Simplify right side
    7,321.40x = 45,352,455.99
  5. Step 5: Solve for x
    x = 45,352,455.99/7,321.40
  6. Step 6: Final answer
    x = 6,194.51

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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.