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Finding the Fourth Proportional to 5,806.58, 8,709.87 and 1,912.10

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Solution

The fourth proportional to 5,806.58, 8,709.87 and 1,912.10 is: 2,868.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,806.58 : 8,709.87 = 1,912.10 : x
  2. Step 2: Convert to fraction form
    5,806.58/8,709.87 = 1,912.10/x
  3. Step 3: Cross multiply
    5,806.58x = 8,709.87 × 1,912.10
  4. Step 4: Simplify right side
    5,806.58x = 16,654,142.43
  5. Step 5: Solve for x
    x = 16,654,142.43/5,806.58
  6. Step 6: Final answer
    x = 2,868.15

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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.