Home / 5,277.30-7,282.80-2,919.60

Finding the Fourth Proportional to 5,277.30, 7,282.80 and 2,919.60

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Solution

The fourth proportional to 5,277.30, 7,282.80 and 2,919.60 is: 4,029.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,277.30 : 7,282.80 = 2,919.60 : x
  2. Step 2: Convert to fraction form
    5,277.30/7,282.80 = 2,919.60/x
  3. Step 3: Cross multiply
    5,277.30x = 7,282.80 × 2,919.60
  4. Step 4: Simplify right side
    5,277.30x = 21,262,862.88
  5. Step 5: Solve for x
    x = 21,262,862.88/5,277.30
  6. Step 6: Final answer
    x = 4,029.12

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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.