Home / 2,110.34-2,911.80-1,226.12

Finding the Fourth Proportional to 2,110.34, 2,911.80 and 1,226.12

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Solution

The fourth proportional to 2,110.34, 2,911.80 and 1,226.12 is: 1,691.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,110.34 : 2,911.80 = 1,226.12 : x
  2. Step 2: Convert to fraction form
    2,110.34/2,911.80 = 1,226.12/x
  3. Step 3: Cross multiply
    2,110.34x = 2,911.80 × 1,226.12
  4. Step 4: Simplify right side
    2,110.34x = 3,570,216.22
  5. Step 5: Solve for x
    x = 3,570,216.22/2,110.34
  6. Step 6: Final answer
    x = 1,691.77

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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.