Home / 1,921.03-2,882.36-1,142.53

Finding the Fourth Proportional to 1,921.03, 2,882.36 and 1,142.53

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Solution

The fourth proportional to 1,921.03, 2,882.36 and 1,142.53 is: 1,714.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,921.03 : 2,882.36 = 1,142.53 : x
  2. Step 2: Convert to fraction form
    1,921.03/2,882.36 = 1,142.53/x
  3. Step 3: Cross multiply
    1,921.03x = 2,882.36 × 1,142.53
  4. Step 4: Simplify right side
    1,921.03x = 3,293,182.77
  5. Step 5: Solve for x
    x = 3,293,182.77/1,921.03
  6. Step 6: Final answer
    x = 1,714.28

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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.