Home / 7,321.07-10,103.01-3,963.80

Finding the Fourth Proportional to 7,321.07, 10,103.01 and 3,963.80

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Solution

The fourth proportional to 7,321.07, 10,103.01 and 3,963.80 is: 5,470.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,321.07 : 10,103.01 = 3,963.80 : x
  2. Step 2: Convert to fraction form
    7,321.07/10,103.01 = 3,963.80/x
  3. Step 3: Cross multiply
    7,321.07x = 10,103.01 × 3,963.80
  4. Step 4: Simplify right side
    7,321.07x = 40,046,336.30
  5. Step 5: Solve for x
    x = 40,046,336.30/7,321.07
  6. Step 6: Final answer
    x = 5,470.01

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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.