Home / 6,639.18-9,158.24-4,150.86

Finding the Fourth Proportional to 6,639.18, 9,158.24 and 4,150.86

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Solution

The fourth proportional to 6,639.18, 9,158.24 and 4,150.86 is: 5,725.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,639.18 : 9,158.24 = 4,150.86 : x
  2. Step 2: Convert to fraction form
    6,639.18/9,158.24 = 4,150.86/x
  3. Step 3: Cross multiply
    6,639.18x = 9,158.24 × 4,150.86
  4. Step 4: Simplify right side
    6,639.18x = 38,014,572.09
  5. Step 5: Solve for x
    x = 38,014,572.09/6,639.18
  6. Step 6: Final answer
    x = 5,725.79

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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.