Home / 3,921.21-5,876.01-1,971

Finding the Fourth Proportional to 3,921.21, 5,876.01 and 1,971

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Solution

The fourth proportional to 3,921.21, 5,876.01 and 1,971 is: 2,953.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,921.21 : 5,876.01 = 1,971 : x
  2. Step 2: Convert to fraction form
    3,921.21/5,876.01 = 1,971/x
  3. Step 3: Cross multiply
    3,921.21x = 5,876.01 × 1,971
  4. Step 4: Simplify right side
    3,921.21x = 11,581,615.71
  5. Step 5: Solve for x
    x = 11,581,615.71/3,921.21
  6. Step 6: Final answer
    x = 2,953.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.