Home / 2,121.24-3,182.62-951.12

Finding the Fourth Proportional to 2,121.24, 3,182.62 and 951.12

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Solution

The fourth proportional to 2,121.24, 3,182.62 and 951.12 is: 1,427.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,121.24 : 3,182.62 = 951.12 : x
  2. Step 2: Convert to fraction form
    2,121.24/3,182.62 = 951.12/x
  3. Step 3: Cross multiply
    2,121.24x = 3,182.62 × 951.12
  4. Step 4: Simplify right side
    2,121.24x = 3,027,041.31
  5. Step 5: Solve for x
    x = 3,027,041.31/2,121.24
  6. Step 6: Final answer
    x = 1,427.02

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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.