Home / 7,723.20-10,658.04-4,186.38

Finding the Fourth Proportional to 7,723.20, 10,658.04 and 4,186.38

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Solution

The fourth proportional to 7,723.20, 10,658.04 and 4,186.38 is: 5,777.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,723.20 : 10,658.04 = 4,186.38 : x
  2. Step 2: Convert to fraction form
    7,723.20/10,658.04 = 4,186.38/x
  3. Step 3: Cross multiply
    7,723.20x = 10,658.04 × 4,186.38
  4. Step 4: Simplify right side
    7,723.20x = 44,618,605.50
  5. Step 5: Solve for x
    x = 44,618,605.50/7,723.20
  6. Step 6: Final answer
    x = 5,777.22

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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.