Home / 2,231.46-3,078.27-1,445.76

Finding the Fourth Proportional to 2,231.46, 3,078.27 and 1,445.76

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Solution

The fourth proportional to 2,231.46, 3,078.27 and 1,445.76 is: 1,994.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,231.46 : 3,078.27 = 1,445.76 : x
  2. Step 2: Convert to fraction form
    2,231.46/3,078.27 = 1,445.76/x
  3. Step 3: Cross multiply
    2,231.46x = 3,078.27 × 1,445.76
  4. Step 4: Simplify right side
    2,231.46x = 4,450,439.64
  5. Step 5: Solve for x
    x = 4,450,439.64/2,231.46
  6. Step 6: Final answer
    x = 1,994.41

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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.