Home / 6,789.05-9,368.91-4,431.20

Finding the Fourth Proportional to 6,789.05, 9,368.91 and 4,431.20

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Solution

The fourth proportional to 6,789.05, 9,368.91 and 4,431.20 is: 6,115.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,789.05 : 9,368.91 = 4,431.20 : x
  2. Step 2: Convert to fraction form
    6,789.05/9,368.91 = 4,431.20/x
  3. Step 3: Cross multiply
    6,789.05x = 9,368.91 × 4,431.20
  4. Step 4: Simplify right side
    6,789.05x = 41,515,467.15
  5. Step 5: Solve for x
    x = 41,515,467.15/6,789.05
  6. Step 6: Final answer
    x = 6,115.07

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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.