Home / 2,219.20-3,330.96-1,856.32

Finding the Fourth Proportional to 2,219.20, 3,330.96 and 1,856.32

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Solution

The fourth proportional to 2,219.20, 3,330.96 and 1,856.32 is: 2,786.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,219.20 : 3,330.96 = 1,856.32 : x
  2. Step 2: Convert to fraction form
    2,219.20/3,330.96 = 1,856.32/x
  3. Step 3: Cross multiply
    2,219.20x = 3,330.96 × 1,856.32
  4. Step 4: Simplify right side
    2,219.20x = 6,183,327.67
  5. Step 5: Solve for x
    x = 6,183,327.67/2,219.20
  6. Step 6: Final answer
    x = 2,786.29

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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.