Home / 2,335.15-3,221.57-2,174.70

Finding the Fourth Proportional to 2,335.15, 3,221.57 and 2,174.70

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Solution

The fourth proportional to 2,335.15, 3,221.57 and 2,174.70 is: 3,000.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,335.15 : 3,221.57 = 2,174.70 : x
  2. Step 2: Convert to fraction form
    2,335.15/3,221.57 = 2,174.70/x
  3. Step 3: Cross multiply
    2,335.15x = 3,221.57 × 2,174.70
  4. Step 4: Simplify right side
    2,335.15x = 7,005,947.68
  5. Step 5: Solve for x
    x = 7,005,947.68/2,335.15
  6. Step 6: Final answer
    x = 3,000.22

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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.