Home / 7,919.55-10,930.14-4,561.72

Finding the Fourth Proportional to 7,919.55, 10,930.14 and 4,561.72

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Solution

The fourth proportional to 7,919.55, 10,930.14 and 4,561.72 is: 6,295.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,919.55 : 10,930.14 = 4,561.72 : x
  2. Step 2: Convert to fraction form
    7,919.55/10,930.14 = 4,561.72/x
  3. Step 3: Cross multiply
    7,919.55x = 10,930.14 × 4,561.72
  4. Step 4: Simplify right side
    7,919.55x = 49,860,249.65
  5. Step 5: Solve for x
    x = 49,860,249.65/7,919.55
  6. Step 6: Final answer
    x = 6,295.84

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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.