Home / 3,614.76-4,988.34-2,122.38

Finding the Fourth Proportional to 3,614.76, 4,988.34 and 2,122.38

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Solution

The fourth proportional to 3,614.76, 4,988.34 and 2,122.38 is: 2,928.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,614.76 : 4,988.34 = 2,122.38 : x
  2. Step 2: Convert to fraction form
    3,614.76/4,988.34 = 2,122.38/x
  3. Step 3: Cross multiply
    3,614.76x = 4,988.34 × 2,122.38
  4. Step 4: Simplify right side
    3,614.76x = 10,587,153.05
  5. Step 5: Solve for x
    x = 10,587,153.05/3,614.76
  6. Step 6: Final answer
    x = 2,928.87

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1.5x scale

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.