Home / 3,491.12-4,817.49-1,999.02

Finding the Fourth Proportional to 3,491.12, 4,817.49 and 1,999.02

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Solution

The fourth proportional to 3,491.12, 4,817.49 and 1,999.02 is: 2,758.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,491.12 : 4,817.49 = 1,999.02 : x
  2. Step 2: Convert to fraction form
    3,491.12/4,817.49 = 1,999.02/x
  3. Step 3: Cross multiply
    3,491.12x = 4,817.49 × 1,999.02
  4. Step 4: Simplify right side
    3,491.12x = 9,630,258.86
  5. Step 5: Solve for x
    x = 9,630,258.86/3,491.12
  6. Step 6: Final answer
    x = 2,758.51

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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.