Home / 2,439.72-3,366.36-1,445.04

Finding the Fourth Proportional to 2,439.72, 3,366.36 and 1,445.04

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Solution

The fourth proportional to 2,439.72, 3,366.36 and 1,445.04 is: 1,993.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,439.72 : 3,366.36 = 1,445.04 : x
  2. Step 2: Convert to fraction form
    2,439.72/3,366.36 = 1,445.04/x
  3. Step 3: Cross multiply
    2,439.72x = 3,366.36 × 1,445.04
  4. Step 4: Simplify right side
    2,439.72x = 4,864,524.85
  5. Step 5: Solve for x
    x = 4,864,524.85/2,439.72
  6. Step 6: Final answer
    x = 1,993.89

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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.