Home / 3,244.83-4,478.20-1,986.72

Finding the Fourth Proportional to 3,244.83, 4,478.20 and 1,986.72

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Solution

The fourth proportional to 3,244.83, 4,478.20 and 1,986.72 is: 2,741.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,244.83 : 4,478.20 = 1,986.72 : x
  2. Step 2: Convert to fraction form
    3,244.83/4,478.20 = 1,986.72/x
  3. Step 3: Cross multiply
    3,244.83x = 4,478.20 × 1,986.72
  4. Step 4: Simplify right side
    3,244.83x = 8,896,929.50
  5. Step 5: Solve for x
    x = 8,896,929.50/3,244.83
  6. Step 6: Final answer
    x = 2,741.88

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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.