Home / 5,639.31-8,444.39-3,889.71

Finding the Fourth Proportional to 5,639.31, 8,444.39 and 3,889.71

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Solution

The fourth proportional to 5,639.31, 8,444.39 and 3,889.71 is: 5,824.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,639.31 : 8,444.39 = 3,889.71 : x
  2. Step 2: Convert to fraction form
    5,639.31/8,444.39 = 3,889.71/x
  3. Step 3: Cross multiply
    5,639.31x = 8,444.39 × 3,889.71
  4. Step 4: Simplify right side
    5,639.31x = 32,846,208.78
  5. Step 5: Solve for x
    x = 32,846,208.78/5,639.31
  6. Step 6: Final answer
    x = 5,824.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.