Home / 5,805.80-8,706.63-2,107.07

Finding the Fourth Proportional to 5,805.80, 8,706.63 and 2,107.07

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Solution

The fourth proportional to 5,805.80, 8,706.63 and 2,107.07 is: 3,159.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,805.80 : 8,706.63 = 2,107.07 : x
  2. Step 2: Convert to fraction form
    5,805.80/8,706.63 = 2,107.07/x
  3. Step 3: Cross multiply
    5,805.80x = 8,706.63 × 2,107.07
  4. Step 4: Simplify right side
    5,805.80x = 18,345,478.87
  5. Step 5: Solve for x
    x = 18,345,478.87/5,805.80
  6. Step 6: Final answer
    x = 3,159.85

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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.