Home / 4,871.24-7,291.76-3,939.02

Finding the Fourth Proportional to 4,871.24, 7,291.76 and 3,939.02

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Solution

The fourth proportional to 4,871.24, 7,291.76 and 3,939.02 is: 5,896.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,871.24 : 7,291.76 = 3,939.02 : x
  2. Step 2: Convert to fraction form
    4,871.24/7,291.76 = 3,939.02/x
  3. Step 3: Cross multiply
    4,871.24x = 7,291.76 × 3,939.02
  4. Step 4: Simplify right side
    4,871.24x = 28,722,388.48
  5. Step 5: Solve for x
    x = 28,722,388.48/4,871.24
  6. Step 6: Final answer
    x = 5,896.32

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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.