Home / 3,245.52-4,478.57-1,986.05

Finding the Fourth Proportional to 3,245.52, 4,478.57 and 1,986.05

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Solution

The fourth proportional to 3,245.52, 4,478.57 and 1,986.05 is: 2,740.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,245.52 : 4,478.57 = 1,986.05 : x
  2. Step 2: Convert to fraction form
    3,245.52/4,478.57 = 1,986.05/x
  3. Step 3: Cross multiply
    3,245.52x = 4,478.57 × 1,986.05
  4. Step 4: Simplify right side
    3,245.52x = 8,894,665.21
  5. Step 5: Solve for x
    x = 8,894,665.21/3,245.52
  6. Step 6: Final answer
    x = 2,740.60

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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.