Home / 2,126.20-2,934-1,181.98

Finding the Fourth Proportional to 2,126.20, 2,934 and 1,181.98

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Solution

The fourth proportional to 2,126.20, 2,934 and 1,181.98 is: 1,631.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,126.20 : 2,934 = 1,181.98 : x
  2. Step 2: Convert to fraction form
    2,126.20/2,934 = 1,181.98/x
  3. Step 3: Cross multiply
    2,126.20x = 2,934 × 1,181.98
  4. Step 4: Simplify right side
    2,126.20x = 3,467,929.32
  5. Step 5: Solve for x
    x = 3,467,929.32/2,126.20
  6. Step 6: Final answer
    x = 1,631.05

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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.