Home / 2,487.84-3,727.96-1,251.80

Finding the Fourth Proportional to 2,487.84, 3,727.96 and 1,251.80

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Solution

The fourth proportional to 2,487.84, 3,727.96 and 1,251.80 is: 1,875.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,487.84 : 3,727.96 = 1,251.80 : x
  2. Step 2: Convert to fraction form
    2,487.84/3,727.96 = 1,251.80/x
  3. Step 3: Cross multiply
    2,487.84x = 3,727.96 × 1,251.80
  4. Step 4: Simplify right side
    2,487.84x = 4,666,660.33
  5. Step 5: Solve for x
    x = 4,666,660.33/2,487.84
  6. Step 6: Final answer
    x = 1,875.79

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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.