Home / 7,422.90-10,243.20-4,065.06

Finding the Fourth Proportional to 7,422.90, 10,243.20 and 4,065.06

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Solution

The fourth proportional to 7,422.90, 10,243.20 and 4,065.06 is: 5,609.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,422.90 : 10,243.20 = 4,065.06 : x
  2. Step 2: Convert to fraction form
    7,422.90/10,243.20 = 4,065.06/x
  3. Step 3: Cross multiply
    7,422.90x = 10,243.20 × 4,065.06
  4. Step 4: Simplify right side
    7,422.90x = 41,639,222.59
  5. Step 5: Solve for x
    x = 41,639,222.59/7,422.90
  6. Step 6: Final answer
    x = 5,609.56

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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.