Home / 2,892.32-3,991.38-1,565.99

Finding the Fourth Proportional to 2,892.32, 3,991.38 and 1,565.99

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Solution

The fourth proportional to 2,892.32, 3,991.38 and 1,565.99 is: 2,161.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,892.32 : 3,991.38 = 1,565.99 : x
  2. Step 2: Convert to fraction form
    2,892.32/3,991.38 = 1,565.99/x
  3. Step 3: Cross multiply
    2,892.32x = 3,991.38 × 1,565.99
  4. Step 4: Simplify right side
    2,892.32x = 6,250,481.56
  5. Step 5: Solve for x
    x = 6,250,481.56/2,892.32
  6. Step 6: Final answer
    x = 2,161.06

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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.