Home / 7,095.42-9,791.70-3,908.61

Finding the Fourth Proportional to 7,095.42, 9,791.70 and 3,908.61

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Solution

The fourth proportional to 7,095.42, 9,791.70 and 3,908.61 is: 5,393.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,095.42 : 9,791.70 = 3,908.61 : x
  2. Step 2: Convert to fraction form
    7,095.42/9,791.70 = 3,908.61/x
  3. Step 3: Cross multiply
    7,095.42x = 9,791.70 × 3,908.61
  4. Step 4: Simplify right side
    7,095.42x = 38,271,921.88
  5. Step 5: Solve for x
    x = 38,271,921.88/7,095.42
  6. Step 6: Final answer
    x = 5,393.89

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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.