Home / 3,614.76-4,988.79-2,217.78

Finding the Fourth Proportional to 3,614.76, 4,988.79 and 2,217.78

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Solution

The fourth proportional to 3,614.76, 4,988.79 and 2,217.78 is: 3,060.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,614.76 : 4,988.79 = 2,217.78 : x
  2. Step 2: Convert to fraction form
    3,614.76/4,988.79 = 2,217.78/x
  3. Step 3: Cross multiply
    3,614.76x = 4,988.79 × 2,217.78
  4. Step 4: Simplify right side
    3,614.76x = 11,064,038.69
  5. Step 5: Solve for x
    x = 11,064,038.69/3,614.76
  6. Step 6: Final answer
    x = 3,060.79

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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.