Home / 4,987.26-7,474.53-2,648.38

Finding the Fourth Proportional to 4,987.26, 7,474.53 and 2,648.38

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Solution

The fourth proportional to 4,987.26, 7,474.53 and 2,648.38 is: 3,969.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,987.26 : 7,474.53 = 2,648.38 : x
  2. Step 2: Convert to fraction form
    4,987.26/7,474.53 = 2,648.38/x
  3. Step 3: Cross multiply
    4,987.26x = 7,474.53 × 2,648.38
  4. Step 4: Simplify right side
    4,987.26x = 19,795,417.66
  5. Step 5: Solve for x
    x = 19,795,417.66/4,987.26
  6. Step 6: Final answer
    x = 3,969.20

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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.