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Finding the Fourth Proportional to 1,810.74, 2,716.51 and 1,031.11

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Solution

The fourth proportional to 1,810.74, 2,716.51 and 1,031.11 is: 1,546.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,810.74 : 2,716.51 = 1,031.11 : x
  2. Step 2: Convert to fraction form
    1,810.74/2,716.51 = 1,031.11/x
  3. Step 3: Cross multiply
    1,810.74x = 2,716.51 × 1,031.11
  4. Step 4: Simplify right side
    1,810.74x = 2,801,020.63
  5. Step 5: Solve for x
    x = 2,801,020.63/1,810.74
  6. Step 6: Final answer
    x = 1,546.89

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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.