Home / 2,155.30-3,232.95-2,001.70

Finding the Fourth Proportional to 2,155.30, 3,232.95 and 2,001.70

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Solution

The fourth proportional to 2,155.30, 3,232.95 and 2,001.70 is: 3,002.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,155.30 : 3,232.95 = 2,001.70 : x
  2. Step 2: Convert to fraction form
    2,155.30/3,232.95 = 2,001.70/x
  3. Step 3: Cross multiply
    2,155.30x = 3,232.95 × 2,001.70
  4. Step 4: Simplify right side
    2,155.30x = 6,471,396.02
  5. Step 5: Solve for x
    x = 6,471,396.02/2,155.30
  6. Step 6: Final answer
    x = 3,002.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.