Home / 3,922.56-5,878.08-1,972.08

Finding the Fourth Proportional to 3,922.56, 5,878.08 and 1,972.08

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Solution

The fourth proportional to 3,922.56, 5,878.08 and 1,972.08 is: 2,955.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,922.56 : 5,878.08 = 1,972.08 : x
  2. Step 2: Convert to fraction form
    3,922.56/5,878.08 = 1,972.08/x
  3. Step 3: Cross multiply
    3,922.56x = 5,878.08 × 1,972.08
  4. Step 4: Simplify right side
    3,922.56x = 11,592,044.01
  5. Step 5: Solve for x
    x = 11,592,044.01/3,922.56
  6. Step 6: Final answer
    x = 2,955.22

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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.