Home / 3,135.15-4,322.97-2,140.95

Finding the Fourth Proportional to 3,135.15, 4,322.97 and 2,140.95

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Solution

The fourth proportional to 3,135.15, 4,322.97 and 2,140.95 is: 2,952.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,135.15 : 4,322.97 = 2,140.95 : x
  2. Step 2: Convert to fraction form
    3,135.15/4,322.97 = 2,140.95/x
  3. Step 3: Cross multiply
    3,135.15x = 4,322.97 × 2,140.95
  4. Step 4: Simplify right side
    3,135.15x = 9,255,262.62
  5. Step 5: Solve for x
    x = 9,255,262.62/3,135.15
  6. Step 6: Final answer
    x = 2,952.10

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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.