Home / 1,958.50-2,921.41-1,771.66

Finding the Fourth Proportional to 1,958.50, 2,921.41 and 1,771.66

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Solution

The fourth proportional to 1,958.50, 2,921.41 and 1,771.66 is: 2,642.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,958.50 : 2,921.41 = 1,771.66 : x
  2. Step 2: Convert to fraction form
    1,958.50/2,921.41 = 1,771.66/x
  3. Step 3: Cross multiply
    1,958.50x = 2,921.41 × 1,771.66
  4. Step 4: Simplify right side
    1,958.50x = 5,175,730.63
  5. Step 5: Solve for x
    x = 5,175,730.63/1,958.50
  6. Step 6: Final answer
    x = 2,642.71

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.