Home / 5,586.71-8,376.39-3,121.79

Finding the Fourth Proportional to 5,586.71, 8,376.39 and 3,121.79

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Solution

The fourth proportional to 5,586.71, 8,376.39 and 3,121.79 is: 4,680.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,586.71 : 8,376.39 = 3,121.79 : x
  2. Step 2: Convert to fraction form
    5,586.71/8,376.39 = 3,121.79/x
  3. Step 3: Cross multiply
    5,586.71x = 8,376.39 × 3,121.79
  4. Step 4: Simplify right side
    5,586.71x = 26,149,288.66
  5. Step 5: Solve for x
    x = 26,149,288.66/5,586.71
  6. Step 6: Final answer
    x = 4,680.63

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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.