Home / 2,230.16-3,081.44-2,151.32

Finding the Fourth Proportional to 2,230.16, 3,081.44 and 2,151.32

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Solution

The fourth proportional to 2,230.16, 3,081.44 and 2,151.32 is: 2,972.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,230.16 : 3,081.44 = 2,151.32 : x
  2. Step 2: Convert to fraction form
    2,230.16/3,081.44 = 2,151.32/x
  3. Step 3: Cross multiply
    2,230.16x = 3,081.44 × 2,151.32
  4. Step 4: Simplify right side
    2,230.16x = 6,629,153.47
  5. Step 5: Solve for x
    x = 6,629,153.47/2,230.16
  6. Step 6: Final answer
    x = 2,972.51

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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.