Home / 2,217.68-3,060.70-1,434.02

Finding the Fourth Proportional to 2,217.68, 3,060.70 and 1,434.02

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Solution

The fourth proportional to 2,217.68, 3,060.70 and 1,434.02 is: 1,979.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,217.68 : 3,060.70 = 1,434.02 : x
  2. Step 2: Convert to fraction form
    2,217.68/3,060.70 = 1,434.02/x
  3. Step 3: Cross multiply
    2,217.68x = 3,060.70 × 1,434.02
  4. Step 4: Simplify right side
    2,217.68x = 4,389,105.01
  5. Step 5: Solve for x
    x = 4,389,105.01/2,217.68
  6. Step 6: Final answer
    x = 1,979.14

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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.