Home / 7,310.19-10,939.77-5,978.55

Finding the Fourth Proportional to 7,310.19, 10,939.77 and 5,978.55

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Solution

The fourth proportional to 7,310.19, 10,939.77 and 5,978.55 is: 8,946.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,310.19 : 10,939.77 = 5,978.55 : x
  2. Step 2: Convert to fraction form
    7,310.19/10,939.77 = 5,978.55/x
  3. Step 3: Cross multiply
    7,310.19x = 10,939.77 × 5,978.55
  4. Step 4: Simplify right side
    7,310.19x = 65,403,961.93
  5. Step 5: Solve for x
    x = 65,403,961.93/7,310.19
  6. Step 6: Final answer
    x = 8,946.96

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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.