Home / 3,998.04-5,518.50-2,319.86

Finding the Fourth Proportional to 3,998.04, 5,518.50 and 2,319.86

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Solution

The fourth proportional to 3,998.04, 5,518.50 and 2,319.86 is: 3,202.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,998.04 : 5,518.50 = 2,319.86 : x
  2. Step 2: Convert to fraction form
    3,998.04/5,518.50 = 2,319.86/x
  3. Step 3: Cross multiply
    3,998.04x = 5,518.50 × 2,319.86
  4. Step 4: Simplify right side
    3,998.04x = 12,802,147.41
  5. Step 5: Solve for x
    x = 12,802,147.41/3,998.04
  6. Step 6: Final answer
    x = 3,202.11

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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.