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Finding the Fourth Proportional to 5,673.65, 8,510.61 and 2,163.20

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Solution

The fourth proportional to 5,673.65, 8,510.61 and 2,163.20 is: 3,244.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,673.65 : 8,510.61 = 2,163.20 : x
  2. Step 2: Convert to fraction form
    5,673.65/8,510.61 = 2,163.20/x
  3. Step 3: Cross multiply
    5,673.65x = 8,510.61 × 2,163.20
  4. Step 4: Simplify right side
    5,673.65x = 18,410,151.55
  5. Step 5: Solve for x
    x = 18,410,151.55/5,673.65
  6. Step 6: Final answer
    x = 3,244.85

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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.