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Finding the Fourth Proportional to 5,812.20, 8,718.30 and 5,739.30

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Solution

The fourth proportional to 5,812.20, 8,718.30 and 5,739.30 is: 8,608.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,812.20 : 8,718.30 = 5,739.30 : x
  2. Step 2: Convert to fraction form
    5,812.20/8,718.30 = 5,739.30/x
  3. Step 3: Cross multiply
    5,812.20x = 8,718.30 × 5,739.30
  4. Step 4: Simplify right side
    5,812.20x = 50,036,939.19
  5. Step 5: Solve for x
    x = 50,036,939.19/5,812.20
  6. Step 6: Final answer
    x = 8,608.95

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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.