Home / 2,400.28-3,290.78-2,356.54

Finding the Fourth Proportional to 2,400.28, 3,290.78 and 2,356.54

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Solution

The fourth proportional to 2,400.28, 3,290.78 and 2,356.54 is: 3,230.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,400.28 : 3,290.78 = 2,356.54 : x
  2. Step 2: Convert to fraction form
    2,400.28/3,290.78 = 2,356.54/x
  3. Step 3: Cross multiply
    2,400.28x = 3,290.78 × 2,356.54
  4. Step 4: Simplify right side
    2,400.28x = 7,754,854.70
  5. Step 5: Solve for x
    x = 7,754,854.70/2,400.28
  6. Step 6: Final answer
    x = 3,230.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.