Home / 4,290.78-5,919.16-2,699.36

Finding the Fourth Proportional to 4,290.78, 5,919.16 and 2,699.36

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Solution

The fourth proportional to 4,290.78, 5,919.16 and 2,699.36 is: 3,723.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,290.78 : 5,919.16 = 2,699.36 : x
  2. Step 2: Convert to fraction form
    4,290.78/5,919.16 = 2,699.36/x
  3. Step 3: Cross multiply
    4,290.78x = 5,919.16 × 2,699.36
  4. Step 4: Simplify right side
    4,290.78x = 15,977,943.74
  5. Step 5: Solve for x
    x = 15,977,943.74/4,290.78
  6. Step 6: Final answer
    x = 3,723.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.