Home / 2,388.70-3,296.28-1,340.74

Finding the Fourth Proportional to 2,388.70, 3,296.28 and 1,340.74

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Solution

The fourth proportional to 2,388.70, 3,296.28 and 1,340.74 is: 1,850.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,388.70 : 3,296.28 = 1,340.74 : x
  2. Step 2: Convert to fraction form
    2,388.70/3,296.28 = 1,340.74/x
  3. Step 3: Cross multiply
    2,388.70x = 3,296.28 × 1,340.74
  4. Step 4: Simplify right side
    2,388.70x = 4,419,454.45
  5. Step 5: Solve for x
    x = 4,419,454.45/2,388.70
  6. Step 6: Final answer
    x = 1,850.15

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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.