Home / 3,782.48-5,220.98-2,291.06

Finding the Fourth Proportional to 3,782.48, 5,220.98 and 2,291.06

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Solution

The fourth proportional to 3,782.48, 5,220.98 and 2,291.06 is: 3,162.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,782.48 : 5,220.98 = 2,291.06 : x
  2. Step 2: Convert to fraction form
    3,782.48/5,220.98 = 2,291.06/x
  3. Step 3: Cross multiply
    3,782.48x = 5,220.98 × 2,291.06
  4. Step 4: Simplify right side
    3,782.48x = 11,961,578.44
  5. Step 5: Solve for x
    x = 11,961,578.44/3,782.48
  6. Step 6: Final answer
    x = 3,162.36

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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.