Home / 3,311-4,948.18-2,658.68

Finding the Fourth Proportional to 3,311, 4,948.18 and 2,658.68

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Solution

The fourth proportional to 3,311, 4,948.18 and 2,658.68 is: 3,973.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,311 : 4,948.18 = 2,658.68 : x
  2. Step 2: Convert to fraction form
    3,311/4,948.18 = 2,658.68/x
  3. Step 3: Cross multiply
    3,311x = 4,948.18 × 2,658.68
  4. Step 4: Simplify right side
    3,311x = 13,155,627.20
  5. Step 5: Solve for x
    x = 13,155,627.20/3,311
  6. Step 6: Final answer
    x = 3,973.31

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.