Home / 4,135.78-5,707.48-2,272.78

Finding the Fourth Proportional to 4,135.78, 5,707.48 and 2,272.78

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Solution

The fourth proportional to 4,135.78, 5,707.48 and 2,272.78 is: 3,136.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,135.78 : 5,707.48 = 2,272.78 : x
  2. Step 2: Convert to fraction form
    4,135.78/5,707.48 = 2,272.78/x
  3. Step 3: Cross multiply
    4,135.78x = 5,707.48 × 2,272.78
  4. Step 4: Simplify right side
    4,135.78x = 12,971,846.39
  5. Step 5: Solve for x
    x = 12,971,846.39/4,135.78
  6. Step 6: Final answer
    x = 3,136.49

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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.