Home / 4,919.77-6,789.20-2,681.66

Finding the Fourth Proportional to 4,919.77, 6,789.20 and 2,681.66

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Solution

The fourth proportional to 4,919.77, 6,789.20 and 2,681.66 is: 3,700.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,919.77 : 6,789.20 = 2,681.66 : x
  2. Step 2: Convert to fraction form
    4,919.77/6,789.20 = 2,681.66/x
  3. Step 3: Cross multiply
    4,919.77x = 6,789.20 × 2,681.66
  4. Step 4: Simplify right side
    4,919.77x = 18,206,329.64
  5. Step 5: Solve for x
    x = 18,206,329.64/4,919.77
  6. Step 6: Final answer
    x = 3,700.65

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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.