Home / 2,335.11-3,222.37-1,272.90

Finding the Fourth Proportional to 2,335.11, 3,222.37 and 1,272.90

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Solution

The fourth proportional to 2,335.11, 3,222.37 and 1,272.90 is: 1,756.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,335.11 : 3,222.37 = 1,272.90 : x
  2. Step 2: Convert to fraction form
    2,335.11/3,222.37 = 1,272.90/x
  3. Step 3: Cross multiply
    2,335.11x = 3,222.37 × 1,272.90
  4. Step 4: Simplify right side
    2,335.11x = 4,101,754.77
  5. Step 5: Solve for x
    x = 4,101,754.77/2,335.11
  6. Step 6: Final answer
    x = 1,756.56

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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.