Home / 2,288.87-3,403.86-2,215.97

Finding the Fourth Proportional to 2,288.87, 3,403.86 and 2,215.97

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Solution

The fourth proportional to 2,288.87, 3,403.86 and 2,215.97 is: 3,295.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,288.87 : 3,403.86 = 2,215.97 : x
  2. Step 2: Convert to fraction form
    2,288.87/3,403.86 = 2,215.97/x
  3. Step 3: Cross multiply
    2,288.87x = 3,403.86 × 2,215.97
  4. Step 4: Simplify right side
    2,288.87x = 7,542,851.64
  5. Step 5: Solve for x
    x = 7,542,851.64/2,288.87
  6. Step 6: Final answer
    x = 3,295.45

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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.