Home / 3,285.38-4,531.86-2,165.92

Finding the Fourth Proportional to 3,285.38, 4,531.86 and 2,165.92

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Solution

The fourth proportional to 3,285.38, 4,531.86 and 2,165.92 is: 2,987.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,285.38 : 4,531.86 = 2,165.92 : x
  2. Step 2: Convert to fraction form
    3,285.38/4,531.86 = 2,165.92/x
  3. Step 3: Cross multiply
    3,285.38x = 4,531.86 × 2,165.92
  4. Step 4: Simplify right side
    3,285.38x = 9,815,634.88
  5. Step 5: Solve for x
    x = 9,815,634.88/3,285.38
  6. Step 6: Final answer
    x = 2,987.67

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1.5x scale

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.