Home / 2,224.38-3,068.60-1,438.68

Finding the Fourth Proportional to 2,224.38, 3,068.60 and 1,438.68

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Solution

The fourth proportional to 2,224.38, 3,068.60 and 1,438.68 is: 1,984.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,224.38 : 3,068.60 = 1,438.68 : x
  2. Step 2: Convert to fraction form
    2,224.38/3,068.60 = 1,438.68/x
  3. Step 3: Cross multiply
    2,224.38x = 3,068.60 × 1,438.68
  4. Step 4: Simplify right side
    2,224.38x = 4,414,733.45
  5. Step 5: Solve for x
    x = 4,414,733.45/2,224.38
  6. Step 6: Final answer
    x = 1,984.70

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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.