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Finding the Fourth Proportional to 5,910.13, 8,865.20 and 1,806.13

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Solution

The fourth proportional to 5,910.13, 8,865.20 and 1,806.13 is: 2,709.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,910.13 : 8,865.20 = 1,806.13 : x
  2. Step 2: Convert to fraction form
    5,910.13/8,865.20 = 1,806.13/x
  3. Step 3: Cross multiply
    5,910.13x = 8,865.20 × 1,806.13
  4. Step 4: Simplify right side
    5,910.13x = 16,011,703.68
  5. Step 5: Solve for x
    x = 16,011,703.68/5,910.13
  6. Step 6: Final answer
    x = 2,709.20

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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.