Home / 4,928.87-6,801.80-2,690.78

Finding the Fourth Proportional to 4,928.87, 6,801.80 and 2,690.78

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Solution

The fourth proportional to 4,928.87, 6,801.80 and 2,690.78 is: 3,713.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,928.87 : 6,801.80 = 2,690.78 : x
  2. Step 2: Convert to fraction form
    4,928.87/6,801.80 = 2,690.78/x
  3. Step 3: Cross multiply
    4,928.87x = 6,801.80 × 2,690.78
  4. Step 4: Simplify right side
    4,928.87x = 18,302,099.94
  5. Step 5: Solve for x
    x = 18,302,099.94/4,928.87
  6. Step 6: Final answer
    x = 3,713.24

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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.