Home / 5,219.78-7,203.06-2,862.02

Finding the Fourth Proportional to 5,219.78, 7,203.06 and 2,862.02

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Solution

The fourth proportional to 5,219.78, 7,203.06 and 2,862.02 is: 3,949.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,219.78 : 7,203.06 = 2,862.02 : x
  2. Step 2: Convert to fraction form
    5,219.78/7,203.06 = 2,862.02/x
  3. Step 3: Cross multiply
    5,219.78x = 7,203.06 × 2,862.02
  4. Step 4: Simplify right side
    5,219.78x = 20,615,301.78
  5. Step 5: Solve for x
    x = 20,615,301.78/5,219.78
  6. Step 6: Final answer
    x = 3,949.46

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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.