Home / 3,170.51-4,375.01-1,977.21

Finding the Fourth Proportional to 3,170.51, 4,375.01 and 1,977.21

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Solution

The fourth proportional to 3,170.51, 4,375.01 and 1,977.21 is: 2,728.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,170.51 : 4,375.01 = 1,977.21 : x
  2. Step 2: Convert to fraction form
    3,170.51/4,375.01 = 1,977.21/x
  3. Step 3: Cross multiply
    3,170.51x = 4,375.01 × 1,977.21
  4. Step 4: Simplify right side
    3,170.51x = 8,650,318.47
  5. Step 5: Solve for x
    x = 8,650,318.47/3,170.51
  6. Step 6: Final answer
    x = 2,728.37

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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.