Home / 5,812.72-8,718.76-2,115.44

Finding the Fourth Proportional to 5,812.72, 8,718.76 and 2,115.44

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Solution

The fourth proportional to 5,812.72, 8,718.76 and 2,115.44 is: 3,173.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,812.72 : 8,718.76 = 2,115.44 : x
  2. Step 2: Convert to fraction form
    5,812.72/8,718.76 = 2,115.44/x
  3. Step 3: Cross multiply
    5,812.72x = 8,718.76 × 2,115.44
  4. Step 4: Simplify right side
    5,812.72x = 18,444,013.65
  5. Step 5: Solve for x
    x = 18,444,013.65/5,812.72
  6. Step 6: Final answer
    x = 3,173.04

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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.