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Finding the Fourth Proportional to 2,340, 3,511.08 and 1,314

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Solution

The fourth proportional to 2,340, 3,511.08 and 1,314 is: 1,971.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,340 : 3,511.08 = 1,314 : x
  2. Step 2: Convert to fraction form
    2,340/3,511.08 = 1,314/x
  3. Step 3: Cross multiply
    2,340x = 3,511.08 × 1,314
  4. Step 4: Simplify right side
    2,340x = 4,613,559.12
  5. Step 5: Solve for x
    x = 4,613,559.12/2,340
  6. Step 6: Final answer
    x = 1,971.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.