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Finding the Fourth Proportional to 6,866.88, 10,291.68 and 4,922.88

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Solution

The fourth proportional to 6,866.88, 10,291.68 and 4,922.88 is: 7,378.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,866.88 : 10,291.68 = 4,922.88 : x
  2. Step 2: Convert to fraction form
    6,866.88/10,291.68 = 4,922.88/x
  3. Step 3: Cross multiply
    6,866.88x = 10,291.68 × 4,922.88
  4. Step 4: Simplify right side
    6,866.88x = 50,664,705.64
  5. Step 5: Solve for x
    x = 50,664,705.64/6,866.88
  6. Step 6: Final answer
    x = 7,378.13

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1.5x scale

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.