Home / 3,042.09-4,197.99-1,715.78

Finding the Fourth Proportional to 3,042.09, 4,197.99 and 1,715.78

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Solution

The fourth proportional to 3,042.09, 4,197.99 and 1,715.78 is: 2,367.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,042.09 : 4,197.99 = 1,715.78 : x
  2. Step 2: Convert to fraction form
    3,042.09/4,197.99 = 1,715.78/x
  3. Step 3: Cross multiply
    3,042.09x = 4,197.99 × 1,715.78
  4. Step 4: Simplify right side
    3,042.09x = 7,202,806.29
  5. Step 5: Solve for x
    x = 7,202,806.29/3,042.09
  6. Step 6: Final answer
    x = 2,367.72

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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.