Home / 7,243.20-9,995.67-4,099.32

Finding the Fourth Proportional to 7,243.20, 9,995.67 and 4,099.32

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Solution

The fourth proportional to 7,243.20, 9,995.67 and 4,099.32 is: 5,657.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,243.20 : 9,995.67 = 4,099.32 : x
  2. Step 2: Convert to fraction form
    7,243.20/9,995.67 = 4,099.32/x
  3. Step 3: Cross multiply
    7,243.20x = 9,995.67 × 4,099.32
  4. Step 4: Simplify right side
    7,243.20x = 40,975,449.94
  5. Step 5: Solve for x
    x = 40,975,449.94/7,243.20
  6. Step 6: Final answer
    x = 5,657.09

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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.