Home / 3,742.08-5,163.71-2,170

Finding the Fourth Proportional to 3,742.08, 5,163.71 and 2,170

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Solution

The fourth proportional to 3,742.08, 5,163.71 and 2,170 is: 2,994.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,742.08 : 5,163.71 = 2,170 : x
  2. Step 2: Convert to fraction form
    3,742.08/5,163.71 = 2,170/x
  3. Step 3: Cross multiply
    3,742.08x = 5,163.71 × 2,170
  4. Step 4: Simplify right side
    3,742.08x = 11,205,250.70
  5. Step 5: Solve for x
    x = 11,205,250.70/3,742.08
  6. Step 6: Final answer
    x = 2,994.40

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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.