Home / 5,277.80-7,282.90-2,919.92

Finding the Fourth Proportional to 5,277.80, 7,282.90 and 2,919.92

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Solution

The fourth proportional to 5,277.80, 7,282.90 and 2,919.92 is: 4,029.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,277.80 : 7,282.90 = 2,919.92 : x
  2. Step 2: Convert to fraction form
    5,277.80/7,282.90 = 2,919.92/x
  3. Step 3: Cross multiply
    5,277.80x = 7,282.90 × 2,919.92
  4. Step 4: Simplify right side
    5,277.80x = 21,265,485.37
  5. Step 5: Solve for x
    x = 21,265,485.37/5,277.80
  6. Step 6: Final answer
    x = 4,029.23

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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.