Home / 5,218.36-7,201.56-3,122.08

Finding the Fourth Proportional to 5,218.36, 7,201.56 and 3,122.08

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Solution

The fourth proportional to 5,218.36, 7,201.56 and 3,122.08 is: 4,308.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,218.36 : 7,201.56 = 3,122.08 : x
  2. Step 2: Convert to fraction form
    5,218.36/7,201.56 = 3,122.08/x
  3. Step 3: Cross multiply
    5,218.36x = 7,201.56 × 3,122.08
  4. Step 4: Simplify right side
    5,218.36x = 22,483,846.44
  5. Step 5: Solve for x
    x = 22,483,846.44/5,218.36
  6. Step 6: Final answer
    x = 4,308.60

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1.5x scale

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.