Home / 2,299.76-3,426.78-2,188.17

Finding the Fourth Proportional to 2,299.76, 3,426.78 and 2,188.17

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Solution

The fourth proportional to 2,299.76, 3,426.78 and 2,188.17 is: 3,260.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,299.76 : 3,426.78 = 2,188.17 : x
  2. Step 2: Convert to fraction form
    2,299.76/3,426.78 = 2,188.17/x
  3. Step 3: Cross multiply
    2,299.76x = 3,426.78 × 2,188.17
  4. Step 4: Simplify right side
    2,299.76x = 7,498,377.19
  5. Step 5: Solve for x
    x = 7,498,377.19/2,299.76
  6. Step 6: Final answer
    x = 3,260.51

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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.