Home / 3,117.31-4,669.05-2,418.45

Finding the Fourth Proportional to 3,117.31, 4,669.05 and 2,418.45

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Solution

The fourth proportional to 3,117.31, 4,669.05 and 2,418.45 is: 3,622.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,117.31 : 4,669.05 = 2,418.45 : x
  2. Step 2: Convert to fraction form
    3,117.31/4,669.05 = 2,418.45/x
  3. Step 3: Cross multiply
    3,117.31x = 4,669.05 × 2,418.45
  4. Step 4: Simplify right side
    3,117.31x = 11,291,863.97
  5. Step 5: Solve for x
    x = 11,291,863.97/3,117.31
  6. Step 6: Final answer
    x = 3,622.31

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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.