Home / 7,271.66-10,912.92-2,830.02

Finding the Fourth Proportional to 7,271.66, 10,912.92 and 2,830.02

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Solution

The fourth proportional to 7,271.66, 10,912.92 and 2,830.02 is: 4,247.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,271.66 : 10,912.92 = 2,830.02 : x
  2. Step 2: Convert to fraction form
    7,271.66/10,912.92 = 2,830.02/x
  3. Step 3: Cross multiply
    7,271.66x = 10,912.92 × 2,830.02
  4. Step 4: Simplify right side
    7,271.66x = 30,883,781.86
  5. Step 5: Solve for x
    x = 30,883,781.86/7,271.66
  6. Step 6: Final answer
    x = 4,247.15

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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.