Home / 4,869.75-6,720.27-3,100.98

Finding the Fourth Proportional to 4,869.75, 6,720.27 and 3,100.98

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Solution

The fourth proportional to 4,869.75, 6,720.27 and 3,100.98 is: 4,279.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,869.75 : 6,720.27 = 3,100.98 : x
  2. Step 2: Convert to fraction form
    4,869.75/6,720.27 = 3,100.98/x
  3. Step 3: Cross multiply
    4,869.75x = 6,720.27 × 3,100.98
  4. Step 4: Simplify right side
    4,869.75x = 20,839,422.86
  5. Step 5: Solve for x
    x = 20,839,422.86/4,869.75
  6. Step 6: Final answer
    x = 4,279.36

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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.