Home / 5,685.45-7,845.03-3,166.77

Finding the Fourth Proportional to 5,685.45, 7,845.03 and 3,166.77

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Solution

The fourth proportional to 5,685.45, 7,845.03 and 3,166.77 is: 4,369.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,685.45 : 7,845.03 = 3,166.77 : x
  2. Step 2: Convert to fraction form
    5,685.45/7,845.03 = 3,166.77/x
  3. Step 3: Cross multiply
    5,685.45x = 7,845.03 × 3,166.77
  4. Step 4: Simplify right side
    5,685.45x = 24,843,405.65
  5. Step 5: Solve for x
    x = 24,843,405.65/5,685.45
  6. Step 6: Final answer
    x = 4,369.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.