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Finding the Fourth Proportional to 7,243.02, 9,995.91 and 4,099.68

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Solution

The fourth proportional to 7,243.02, 9,995.91 and 4,099.68 is: 5,657.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,243.02 : 9,995.91 = 4,099.68 : x
  2. Step 2: Convert to fraction form
    7,243.02/9,995.91 = 4,099.68/x
  3. Step 3: Cross multiply
    7,243.02x = 9,995.91 × 4,099.68
  4. Step 4: Simplify right side
    7,243.02x = 40,980,032.31
  5. Step 5: Solve for x
    x = 40,980,032.31/7,243.02
  6. Step 6: Final answer
    x = 5,657.87

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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.