Home / 2,230.08-3,326.16-2,191.20

Finding the Fourth Proportional to 2,230.08, 3,326.16 and 2,191.20

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Solution

The fourth proportional to 2,230.08, 3,326.16 and 2,191.20 is: 3,268.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,230.08 : 3,326.16 = 2,191.20 : x
  2. Step 2: Convert to fraction form
    2,230.08/3,326.16 = 2,191.20/x
  3. Step 3: Cross multiply
    2,230.08x = 3,326.16 × 2,191.20
  4. Step 4: Simplify right side
    2,230.08x = 7,288,281.79
  5. Step 5: Solve for x
    x = 7,288,281.79/2,230.08
  6. Step 6: Final answer
    x = 3,268.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.