Home / 3,985.22-5,500.86-2,725.79

Finding the Fourth Proportional to 3,985.22, 5,500.86 and 2,725.79

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Solution

The fourth proportional to 3,985.22, 5,500.86 and 2,725.79 is: 3,762.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,985.22 : 5,500.86 = 2,725.79 : x
  2. Step 2: Convert to fraction form
    3,985.22/5,500.86 = 2,725.79/x
  3. Step 3: Cross multiply
    3,985.22x = 5,500.86 × 2,725.79
  4. Step 4: Simplify right side
    3,985.22x = 14,994,202.93
  5. Step 5: Solve for x
    x = 14,994,202.93/3,985.22
  6. Step 6: Final answer
    x = 3,762.45

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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.