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Finding the Fourth Proportional to 4,868.88, 6,720.26 and 2,774.22

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Solution

The fourth proportional to 4,868.88, 6,720.26 and 2,774.22 is: 3,829.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,868.88 : 6,720.26 = 2,774.22 : x
  2. Step 2: Convert to fraction form
    4,868.88/6,720.26 = 2,774.22/x
  3. Step 3: Cross multiply
    4,868.88x = 6,720.26 × 2,774.22
  4. Step 4: Simplify right side
    4,868.88x = 18,643,479.70
  5. Step 5: Solve for x
    x = 18,643,479.70/4,868.88
  6. Step 6: Final answer
    x = 3,829.11

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1.5x scale

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.