Home / 4,919.93-6,789.38-2,681.81

Finding the Fourth Proportional to 4,919.93, 6,789.38 and 2,681.81

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Solution

The fourth proportional to 4,919.93, 6,789.38 and 2,681.81 is: 3,700.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,919.93 : 6,789.38 = 2,681.81 : x
  2. Step 2: Convert to fraction form
    4,919.93/6,789.38 = 2,681.81/x
  3. Step 3: Cross multiply
    4,919.93x = 6,789.38 × 2,681.81
  4. Step 4: Simplify right side
    4,919.93x = 18,207,827.18
  5. Step 5: Solve for x
    x = 18,207,827.18/4,919.93
  6. Step 6: Final answer
    x = 3,700.83

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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.