Home / 3,139.37-4,333.98-2,195.95

Finding the Fourth Proportional to 3,139.37, 4,333.98 and 2,195.95

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Solution

The fourth proportional to 3,139.37, 4,333.98 and 2,195.95 is: 3,031.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,139.37 : 4,333.98 = 2,195.95 : x
  2. Step 2: Convert to fraction form
    3,139.37/4,333.98 = 2,195.95/x
  3. Step 3: Cross multiply
    3,139.37x = 4,333.98 × 2,195.95
  4. Step 4: Simplify right side
    3,139.37x = 9,517,203.38
  5. Step 5: Solve for x
    x = 9,517,203.38/3,139.37
  6. Step 6: Final answer
    x = 3,031.56

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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.