Home / 3,042.18-4,198.19-1,715.87

Finding the Fourth Proportional to 3,042.18, 4,198.19 and 1,715.87

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Solution

The fourth proportional to 3,042.18, 4,198.19 and 1,715.87 is: 2,367.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,042.18 : 4,198.19 = 1,715.87 : x
  2. Step 2: Convert to fraction form
    3,042.18/4,198.19 = 1,715.87/x
  3. Step 3: Cross multiply
    3,042.18x = 4,198.19 × 1,715.87
  4. Step 4: Simplify right side
    3,042.18x = 7,203,563.06
  5. Step 5: Solve for x
    x = 7,203,563.06/3,042.18
  6. Step 6: Final answer
    x = 2,367.90

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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.