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Finding the Fourth Proportional to 2,673.76, 4,010.68 and 1,808.72

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Solution

The fourth proportional to 2,673.76, 4,010.68 and 1,808.72 is: 2,713.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,673.76 : 4,010.68 = 1,808.72 : x
  2. Step 2: Convert to fraction form
    2,673.76/4,010.68 = 1,808.72/x
  3. Step 3: Cross multiply
    2,673.76x = 4,010.68 × 1,808.72
  4. Step 4: Simplify right side
    2,673.76x = 7,254,197.13
  5. Step 5: Solve for x
    x = 7,254,197.13/2,673.76
  6. Step 6: Final answer
    x = 2,713.11

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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.