Home / 2,913.50-4,021.99-1,718.11

Finding the Fourth Proportional to 2,913.50, 4,021.99 and 1,718.11

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Solution

The fourth proportional to 2,913.50, 4,021.99 and 1,718.11 is: 2,371.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,913.50 : 4,021.99 = 1,718.11 : x
  2. Step 2: Convert to fraction form
    2,913.50/4,021.99 = 1,718.11/x
  3. Step 3: Cross multiply
    2,913.50x = 4,021.99 × 1,718.11
  4. Step 4: Simplify right side
    2,913.50x = 6,910,221.97
  5. Step 5: Solve for x
    x = 6,910,221.97/2,913.50
  6. Step 6: Final answer
    x = 2,371.79

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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.