Home / 1,820.47-2,731.92-1,171.66

Finding the Fourth Proportional to 1,820.47, 2,731.92 and 1,171.66

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Solution

The fourth proportional to 1,820.47, 2,731.92 and 1,171.66 is: 1,758.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,820.47 : 2,731.92 = 1,171.66 : x
  2. Step 2: Convert to fraction form
    1,820.47/2,731.92 = 1,171.66/x
  3. Step 3: Cross multiply
    1,820.47x = 2,731.92 × 1,171.66
  4. Step 4: Simplify right side
    1,820.47x = 3,200,881.39
  5. Step 5: Solve for x
    x = 3,200,881.39/1,820.47
  6. Step 6: Final answer
    x = 1,758.27

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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.