Home / 4,745.79-7,121.39-2,554.47

Finding the Fourth Proportional to 4,745.79, 7,121.39 and 2,554.47

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Solution

The fourth proportional to 4,745.79, 7,121.39 and 2,554.47 is: 3,833.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,745.79 : 7,121.39 = 2,554.47 : x
  2. Step 2: Convert to fraction form
    4,745.79/7,121.39 = 2,554.47/x
  3. Step 3: Cross multiply
    4,745.79x = 7,121.39 × 2,554.47
  4. Step 4: Simplify right side
    4,745.79x = 18,191,364.34
  5. Step 5: Solve for x
    x = 18,191,364.34/4,745.79
  6. Step 6: Final answer
    x = 3,833.16

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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.