Home / 5,187.17-7,776.39-2,412.43

Finding the Fourth Proportional to 5,187.17, 7,776.39 and 2,412.43

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Solution

The fourth proportional to 5,187.17, 7,776.39 and 2,412.43 is: 3,616.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,187.17 : 7,776.39 = 2,412.43 : x
  2. Step 2: Convert to fraction form
    5,187.17/7,776.39 = 2,412.43/x
  3. Step 3: Cross multiply
    5,187.17x = 7,776.39 × 2,412.43
  4. Step 4: Simplify right side
    5,187.17x = 18,759,957.65
  5. Step 5: Solve for x
    x = 18,759,957.65/5,187.17
  6. Step 6: Final answer
    x = 3,616.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.