Home / 3,781.48-5,217.06-2,386.12

Finding the Fourth Proportional to 3,781.48, 5,217.06 and 2,386.12

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Solution

The fourth proportional to 3,781.48, 5,217.06 and 2,386.12 is: 3,291.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,781.48 : 5,217.06 = 2,386.12 : x
  2. Step 2: Convert to fraction form
    3,781.48/5,217.06 = 2,386.12/x
  3. Step 3: Cross multiply
    3,781.48x = 5,217.06 × 2,386.12
  4. Step 4: Simplify right side
    3,781.48x = 12,448,531.21
  5. Step 5: Solve for x
    x = 12,448,531.21/3,781.48
  6. Step 6: Final answer
    x = 3,291.97

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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.