Home / 7,239.69-9,991.62-4,095.88

Finding the Fourth Proportional to 7,239.69, 9,991.62 and 4,095.88

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Solution

The fourth proportional to 7,239.69, 9,991.62 and 4,095.88 is: 5,652.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,239.69 : 9,991.62 = 4,095.88 : x
  2. Step 2: Convert to fraction form
    7,239.69/9,991.62 = 4,095.88/x
  3. Step 3: Cross multiply
    7,239.69x = 9,991.62 × 4,095.88
  4. Step 4: Simplify right side
    7,239.69x = 40,924,451.55
  5. Step 5: Solve for x
    x = 40,924,451.55/7,239.69
  6. Step 6: Final answer
    x = 5,652.79

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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.