Home / 2,487.68-3,736.96-2,137.76

Finding the Fourth Proportional to 2,487.68, 3,736.96 and 2,137.76

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Solution

The fourth proportional to 2,487.68, 3,736.96 and 2,137.76 is: 3,211.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,487.68 : 3,736.96 = 2,137.76 : x
  2. Step 2: Convert to fraction form
    2,487.68/3,736.96 = 2,137.76/x
  3. Step 3: Cross multiply
    2,487.68x = 3,736.96 × 2,137.76
  4. Step 4: Simplify right side
    2,487.68x = 7,988,723.61
  5. Step 5: Solve for x
    x = 7,988,723.61/2,487.68
  6. Step 6: Final answer
    x = 3,211.31

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1.5x scale

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.