Home / 7,723.70-10,658.66-4,186.90

Finding the Fourth Proportional to 7,723.70, 10,658.66 and 4,186.90

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Solution

The fourth proportional to 7,723.70, 10,658.66 and 4,186.90 is: 5,777.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,723.70 : 10,658.66 = 4,186.90 : x
  2. Step 2: Convert to fraction form
    7,723.70/10,658.66 = 4,186.90/x
  3. Step 3: Cross multiply
    7,723.70x = 10,658.66 × 4,186.90
  4. Step 4: Simplify right side
    7,723.70x = 44,626,669.33
  5. Step 5: Solve for x
    x = 44,626,669.33/7,723.70
  6. Step 6: Final answer
    x = 5,777.89

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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.