Home / 3,386.25-4,682.75-3,231.54

Finding the Fourth Proportional to 3,386.25, 4,682.75 and 3,231.54

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Solution

The fourth proportional to 3,386.25, 4,682.75 and 3,231.54 is: 4,468.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,386.25 : 4,682.75 = 3,231.54 : x
  2. Step 2: Convert to fraction form
    3,386.25/4,682.75 = 3,231.54/x
  3. Step 3: Cross multiply
    3,386.25x = 4,682.75 × 3,231.54
  4. Step 4: Simplify right side
    3,386.25x = 15,132,477.78
  5. Step 5: Solve for x
    x = 15,132,477.78/3,386.25
  6. Step 6: Final answer
    x = 4,468.80

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Half scale
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Double scale
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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.