Home / 4,815.94-6,645.33-2,691.21

Finding the Fourth Proportional to 4,815.94, 6,645.33 and 2,691.21

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Solution

The fourth proportional to 4,815.94, 6,645.33 and 2,691.21 is: 3,713.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,815.94 : 6,645.33 = 2,691.21 : x
  2. Step 2: Convert to fraction form
    4,815.94/6,645.33 = 2,691.21/x
  3. Step 3: Cross multiply
    4,815.94x = 6,645.33 × 2,691.21
  4. Step 4: Simplify right side
    4,815.94x = 17,883,978.55
  5. Step 5: Solve for x
    x = 17,883,978.55/4,815.94
  6. Step 6: Final answer
    x = 3,713.50

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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.