Home / 7,321.29-10,103.36-3,964.10

Finding the Fourth Proportional to 7,321.29, 10,103.36 and 3,964.10

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Solution

The fourth proportional to 7,321.29, 10,103.36 and 3,964.10 is: 5,470.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,321.29 : 10,103.36 = 3,964.10 : x
  2. Step 2: Convert to fraction form
    7,321.29/10,103.36 = 3,964.10/x
  3. Step 3: Cross multiply
    7,321.29x = 10,103.36 × 3,964.10
  4. Step 4: Simplify right side
    7,321.29x = 40,050,719.47
  5. Step 5: Solve for x
    x = 40,050,719.47/7,321.29
  6. Step 6: Final answer
    x = 5,470.45

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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.