Home / 2,320.39-3,208.31-2,028.79

Finding the Fourth Proportional to 2,320.39, 3,208.31 and 2,028.79

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Solution

The fourth proportional to 2,320.39, 3,208.31 and 2,028.79 is: 2,805.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,320.39 : 3,208.31 = 2,028.79 : x
  2. Step 2: Convert to fraction form
    2,320.39/3,208.31 = 2,028.79/x
  3. Step 3: Cross multiply
    2,320.39x = 3,208.31 × 2,028.79
  4. Step 4: Simplify right side
    2,320.39x = 6,508,987.24
  5. Step 5: Solve for x
    x = 6,508,987.24/2,320.39
  6. Step 6: Final answer
    x = 2,805.13

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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.