Home / 3,291.56-4,542.95-1,965.35

Finding the Fourth Proportional to 3,291.56, 4,542.95 and 1,965.35

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Solution

The fourth proportional to 3,291.56, 4,542.95 and 1,965.35 is: 2,712.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,291.56 : 4,542.95 = 1,965.35 : x
  2. Step 2: Convert to fraction form
    3,291.56/4,542.95 = 1,965.35/x
  3. Step 3: Cross multiply
    3,291.56x = 4,542.95 × 1,965.35
  4. Step 4: Simplify right side
    3,291.56x = 8,928,486.78
  5. Step 5: Solve for x
    x = 8,928,486.78/3,291.56
  6. Step 6: Final answer
    x = 2,712.54

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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.