Home / 7,239.44-9,989.80-4,095.92

Finding the Fourth Proportional to 7,239.44, 9,989.80 and 4,095.92

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Solution

The fourth proportional to 7,239.44, 9,989.80 and 4,095.92 is: 5,652.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,239.44 : 9,989.80 = 4,095.92 : x
  2. Step 2: Convert to fraction form
    7,239.44/9,989.80 = 4,095.92/x
  3. Step 3: Cross multiply
    7,239.44x = 9,989.80 × 4,095.92
  4. Step 4: Simplify right side
    7,239.44x = 40,917,421.62
  5. Step 5: Solve for x
    x = 40,917,421.62/7,239.44
  6. Step 6: Final answer
    x = 5,652.01

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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.