Home / 3,291.83-4,937.39-1,318.28

Finding the Fourth Proportional to 3,291.83, 4,937.39 and 1,318.28

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Solution

The fourth proportional to 3,291.83, 4,937.39 and 1,318.28 is: 1,977.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,291.83 : 4,937.39 = 1,318.28 : x
  2. Step 2: Convert to fraction form
    3,291.83/4,937.39 = 1,318.28/x
  3. Step 3: Cross multiply
    3,291.83x = 4,937.39 × 1,318.28
  4. Step 4: Simplify right side
    3,291.83x = 6,508,862.49
  5. Step 5: Solve for x
    x = 6,508,862.49/3,291.83
  6. Step 6: Final answer
    x = 1,977.28

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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.