Home / 2,974.14-4,102.89-2,176.20

Finding the Fourth Proportional to 2,974.14, 4,102.89 and 2,176.20

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Solution

The fourth proportional to 2,974.14, 4,102.89 and 2,176.20 is: 3,002.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,974.14 : 4,102.89 = 2,176.20 : x
  2. Step 2: Convert to fraction form
    2,974.14/4,102.89 = 2,176.20/x
  3. Step 3: Cross multiply
    2,974.14x = 4,102.89 × 2,176.20
  4. Step 4: Simplify right side
    2,974.14x = 8,928,709.22
  5. Step 5: Solve for x
    x = 8,928,709.22/2,974.14
  6. Step 6: Final answer
    x = 3,002.11

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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.