Home / 2,097.20-3,122.08-2,086.32

Finding the Fourth Proportional to 2,097.20, 3,122.08 and 2,086.32

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Solution

The fourth proportional to 2,097.20, 3,122.08 and 2,086.32 is: 3,105.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,097.20 : 3,122.08 = 2,086.32 : x
  2. Step 2: Convert to fraction form
    2,097.20/3,122.08 = 2,086.32/x
  3. Step 3: Cross multiply
    2,097.20x = 3,122.08 × 2,086.32
  4. Step 4: Simplify right side
    2,097.20x = 6,513,657.95
  5. Step 5: Solve for x
    x = 6,513,657.95/2,097.20
  6. Step 6: Final answer
    x = 3,105.88

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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.