Home / 2,138.08-2,951.33-1,254.62

Finding the Fourth Proportional to 2,138.08, 2,951.33 and 1,254.62

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Solution

The fourth proportional to 2,138.08, 2,951.33 and 1,254.62 is: 1,731.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138.08 : 2,951.33 = 1,254.62 : x
  2. Step 2: Convert to fraction form
    2,138.08/2,951.33 = 1,254.62/x
  3. Step 3: Cross multiply
    2,138.08x = 2,951.33 × 1,254.62
  4. Step 4: Simplify right side
    2,138.08x = 3,702,797.64
  5. Step 5: Solve for x
    x = 3,702,797.64/2,138.08
  6. Step 6: Final answer
    x = 1,731.83

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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.