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Finding the Fourth Proportional to 2,702.10, 4,048.53 and 1,918.22

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Solution

The fourth proportional to 2,702.10, 4,048.53 and 1,918.22 is: 2,874.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,702.10 : 4,048.53 = 1,918.22 : x
  2. Step 2: Convert to fraction form
    2,702.10/4,048.53 = 1,918.22/x
  3. Step 3: Cross multiply
    2,702.10x = 4,048.53 × 1,918.22
  4. Step 4: Simplify right side
    2,702.10x = 7,765,971.22
  5. Step 5: Solve for x
    x = 7,765,971.22/2,702.10
  6. Step 6: Final answer
    x = 2,874.05

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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.