Home / 5,239.65-7,230.55-2,881.77

Finding the Fourth Proportional to 5,239.65, 7,230.55 and 2,881.77

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Solution

The fourth proportional to 5,239.65, 7,230.55 and 2,881.77 is: 3,976.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,239.65 : 7,230.55 = 2,881.77 : x
  2. Step 2: Convert to fraction form
    5,239.65/7,230.55 = 2,881.77/x
  3. Step 3: Cross multiply
    5,239.65x = 7,230.55 × 2,881.77
  4. Step 4: Simplify right side
    5,239.65x = 20,836,767.66
  5. Step 5: Solve for x
    x = 20,836,767.66/5,239.65
  6. Step 6: Final answer
    x = 3,976.75

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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.