Home / 3,851.34-5,775.48-2,097.79

Finding the Fourth Proportional to 3,851.34, 5,775.48 and 2,097.79

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Solution

The fourth proportional to 3,851.34, 5,775.48 and 2,097.79 is: 3,145.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,851.34 : 5,775.48 = 2,097.79 : x
  2. Step 2: Convert to fraction form
    3,851.34/5,775.48 = 2,097.79/x
  3. Step 3: Cross multiply
    3,851.34x = 5,775.48 × 2,097.79
  4. Step 4: Simplify right side
    3,851.34x = 12,115,744.19
  5. Step 5: Solve for x
    x = 12,115,744.19/3,851.34
  6. Step 6: Final answer
    x = 3,145.85

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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.