Home / 2,092.60-3,138.90-1,934.20

Finding the Fourth Proportional to 2,092.60, 3,138.90 and 1,934.20

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Solution

The fourth proportional to 2,092.60, 3,138.90 and 1,934.20 is: 2,901.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,092.60 : 3,138.90 = 1,934.20 : x
  2. Step 2: Convert to fraction form
    2,092.60/3,138.90 = 1,934.20/x
  3. Step 3: Cross multiply
    2,092.60x = 3,138.90 × 1,934.20
  4. Step 4: Simplify right side
    2,092.60x = 6,071,260.38
  5. Step 5: Solve for x
    x = 6,071,260.38/2,092.60
  6. Step 6: Final answer
    x = 2,901.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.