Home / 4,913.80-6,789.68-3,927.22

Finding the Fourth Proportional to 4,913.80, 6,789.68 and 3,927.22

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Solution

The fourth proportional to 4,913.80, 6,789.68 and 3,927.22 is: 5,426.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,913.80 : 6,789.68 = 3,927.22 : x
  2. Step 2: Convert to fraction form
    4,913.80/6,789.68 = 3,927.22/x
  3. Step 3: Cross multiply
    4,913.80x = 6,789.68 × 3,927.22
  4. Step 4: Simplify right side
    4,913.80x = 26,664,567.09
  5. Step 5: Solve for x
    x = 26,664,567.09/4,913.80
  6. Step 6: Final answer
    x = 5,426.47

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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.