Home / 4,911.94-6,778.82-2,758.65

Finding the Fourth Proportional to 4,911.94, 6,778.82 and 2,758.65

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Solution

The fourth proportional to 4,911.94, 6,778.82 and 2,758.65 is: 3,807.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,911.94 : 6,778.82 = 2,758.65 : x
  2. Step 2: Convert to fraction form
    4,911.94/6,778.82 = 2,758.65/x
  3. Step 3: Cross multiply
    4,911.94x = 6,778.82 × 2,758.65
  4. Step 4: Simplify right side
    4,911.94x = 18,700,378.00
  5. Step 5: Solve for x
    x = 18,700,378.00/4,911.94
  6. Step 6: Final answer
    x = 3,807.13

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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.