Home / 3,491.57-4,818.47-1,999.64

Finding the Fourth Proportional to 3,491.57, 4,818.47 and 1,999.64

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Solution

The fourth proportional to 3,491.57, 4,818.47 and 1,999.64 is: 2,759.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,491.57 : 4,818.47 = 1,999.64 : x
  2. Step 2: Convert to fraction form
    3,491.57/4,818.47 = 1,999.64/x
  3. Step 3: Cross multiply
    3,491.57x = 4,818.47 × 1,999.64
  4. Step 4: Simplify right side
    3,491.57x = 9,635,205.35
  5. Step 5: Solve for x
    x = 9,635,205.35/3,491.57
  6. Step 6: Final answer
    x = 2,759.56

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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.