Home / 3,399.36-4,689.56-2,220

Finding the Fourth Proportional to 3,399.36, 4,689.56 and 2,220

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Solution

The fourth proportional to 3,399.36, 4,689.56 and 2,220 is: 3,062.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,399.36 : 4,689.56 = 2,220 : x
  2. Step 2: Convert to fraction form
    3,399.36/4,689.56 = 2,220/x
  3. Step 3: Cross multiply
    3,399.36x = 4,689.56 × 2,220
  4. Step 4: Simplify right side
    3,399.36x = 10,410,823.20
  5. Step 5: Solve for x
    x = 10,410,823.20/3,399.36
  6. Step 6: Final answer
    x = 3,062.58

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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.