Home / 3,614.79-4,988.64-2,122.17

Finding the Fourth Proportional to 3,614.79, 4,988.64 and 2,122.17

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Solution

The fourth proportional to 3,614.79, 4,988.64 and 2,122.17 is: 2,928.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,614.79 : 4,988.64 = 2,122.17 : x
  2. Step 2: Convert to fraction form
    3,614.79/4,988.64 = 2,122.17/x
  3. Step 3: Cross multiply
    3,614.79x = 4,988.64 × 2,122.17
  4. Step 4: Simplify right side
    3,614.79x = 10,586,742.15
  5. Step 5: Solve for x
    x = 10,586,742.15/3,614.79
  6. Step 6: Final answer
    x = 2,928.73

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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.