Home / 6,379.19-8,800.75-3,689.91

Finding the Fourth Proportional to 6,379.19, 8,800.75 and 3,689.91

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Solution

The fourth proportional to 6,379.19, 8,800.75 and 3,689.91 is: 5,090.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,379.19 : 8,800.75 = 3,689.91 : x
  2. Step 2: Convert to fraction form
    6,379.19/8,800.75 = 3,689.91/x
  3. Step 3: Cross multiply
    6,379.19x = 8,800.75 × 3,689.91
  4. Step 4: Simplify right side
    6,379.19x = 32,473,975.43
  5. Step 5: Solve for x
    x = 32,473,975.43/6,379.19
  6. Step 6: Final answer
    x = 5,090.61

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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.