Home / 5,277.69-7,283.18-2,919.78

Finding the Fourth Proportional to 5,277.69, 7,283.18 and 2,919.78

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Solution

The fourth proportional to 5,277.69, 7,283.18 and 2,919.78 is: 4,029.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,277.69 : 7,283.18 = 2,919.78 : x
  2. Step 2: Convert to fraction form
    5,277.69/7,283.18 = 2,919.78/x
  3. Step 3: Cross multiply
    5,277.69x = 7,283.18 × 2,919.78
  4. Step 4: Simplify right side
    5,277.69x = 21,265,290.60
  5. Step 5: Solve for x
    x = 21,265,290.60/5,277.69
  6. Step 6: Final answer
    x = 4,029.28

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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.