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Finding the Fourth Proportional to 5,903.75, 8,856.51 and 3,680.78

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Solution

The fourth proportional to 5,903.75, 8,856.51 and 3,680.78 is: 5,521.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,903.75 : 8,856.51 = 3,680.78 : x
  2. Step 2: Convert to fraction form
    5,903.75/8,856.51 = 3,680.78/x
  3. Step 3: Cross multiply
    5,903.75x = 8,856.51 × 3,680.78
  4. Step 4: Simplify right side
    5,903.75x = 32,598,806.79
  5. Step 5: Solve for x
    x = 32,598,806.79/5,903.75
  6. Step 6: Final answer
    x = 5,521.71

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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.