Home / 6,329.20-9,488.56-3,988.54

Finding the Fourth Proportional to 6,329.20, 9,488.56 and 3,988.54

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Solution

The fourth proportional to 6,329.20, 9,488.56 and 3,988.54 is: 5,979.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,329.20 : 9,488.56 = 3,988.54 : x
  2. Step 2: Convert to fraction form
    6,329.20/9,488.56 = 3,988.54/x
  3. Step 3: Cross multiply
    6,329.20x = 9,488.56 × 3,988.54
  4. Step 4: Simplify right side
    6,329.20x = 37,845,518.88
  5. Step 5: Solve for x
    x = 37,845,518.88/6,329.20
  6. Step 6: Final answer
    x = 5,979.51

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1.5x scale

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.