Home / 2,176.44-3,002.38-1,378.42

Finding the Fourth Proportional to 2,176.44, 3,002.38 and 1,378.42

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Solution

The fourth proportional to 2,176.44, 3,002.38 and 1,378.42 is: 1,901.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,176.44 : 3,002.38 = 1,378.42 : x
  2. Step 2: Convert to fraction form
    2,176.44/3,002.38 = 1,378.42/x
  3. Step 3: Cross multiply
    2,176.44x = 3,002.38 × 1,378.42
  4. Step 4: Simplify right side
    2,176.44x = 4,138,540.64
  5. Step 5: Solve for x
    x = 4,138,540.64/2,176.44
  6. Step 6: Final answer
    x = 1,901.52

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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.