Home / 3,929.71-5,422.01-2,336.27

Finding the Fourth Proportional to 3,929.71, 5,422.01 and 2,336.27

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Solution

The fourth proportional to 3,929.71, 5,422.01 and 2,336.27 is: 3,223.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,929.71 : 5,422.01 = 2,336.27 : x
  2. Step 2: Convert to fraction form
    3,929.71/5,422.01 = 2,336.27/x
  3. Step 3: Cross multiply
    3,929.71x = 5,422.01 × 2,336.27
  4. Step 4: Simplify right side
    3,929.71x = 12,667,240.51
  5. Step 5: Solve for x
    x = 12,667,240.51/3,929.71
  6. Step 6: Final answer
    x = 3,223.46

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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.