Home / 6,391.71-9,586.05-2,879.55

Finding the Fourth Proportional to 6,391.71, 9,586.05 and 2,879.55

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Solution

The fourth proportional to 6,391.71, 9,586.05 and 2,879.55 is: 4,318.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,391.71 : 9,586.05 = 2,879.55 : x
  2. Step 2: Convert to fraction form
    6,391.71/9,586.05 = 2,879.55/x
  3. Step 3: Cross multiply
    6,391.71x = 9,586.05 × 2,879.55
  4. Step 4: Simplify right side
    6,391.71x = 27,603,499.48
  5. Step 5: Solve for x
    x = 27,603,499.48/6,391.71
  6. Step 6: Final answer
    x = 4,318.64

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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.