Home / 2,126.11-2,934.01-1,181.90

Finding the Fourth Proportional to 2,126.11, 2,934.01 and 1,181.90

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Solution

The fourth proportional to 2,126.11, 2,934.01 and 1,181.90 is: 1,631.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,126.11 : 2,934.01 = 1,181.90 : x
  2. Step 2: Convert to fraction form
    2,126.11/2,934.01 = 1,181.90/x
  3. Step 3: Cross multiply
    2,126.11x = 2,934.01 × 1,181.90
  4. Step 4: Simplify right side
    2,126.11x = 3,467,706.42
  5. Step 5: Solve for x
    x = 3,467,706.42/2,126.11
  6. Step 6: Final answer
    x = 1,631.01

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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.