Home / 2,219.08-3,328.62-1,245.86

Finding the Fourth Proportional to 2,219.08, 3,328.62 and 1,245.86

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Solution

The fourth proportional to 2,219.08, 3,328.62 and 1,245.86 is: 1,868.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,219.08 : 3,328.62 = 1,245.86 : x
  2. Step 2: Convert to fraction form
    2,219.08/3,328.62 = 1,245.86/x
  3. Step 3: Cross multiply
    2,219.08x = 3,328.62 × 1,245.86
  4. Step 4: Simplify right side
    2,219.08x = 4,146,994.51
  5. Step 5: Solve for x
    x = 4,146,994.51/2,219.08
  6. Step 6: Final answer
    x = 1,868.79

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Similar ratio
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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.