Home / 3,699.87-5,551.32-2,221.93

Finding the Fourth Proportional to 3,699.87, 5,551.32 and 2,221.93

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Solution

The fourth proportional to 3,699.87, 5,551.32 and 2,221.93 is: 3,333.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,699.87 : 5,551.32 = 2,221.93 : x
  2. Step 2: Convert to fraction form
    3,699.87/5,551.32 = 2,221.93/x
  3. Step 3: Cross multiply
    3,699.87x = 5,551.32 × 2,221.93
  4. Step 4: Simplify right side
    3,699.87x = 12,334,644.45
  5. Step 5: Solve for x
    x = 12,334,644.45/3,699.87
  6. Step 6: Final answer
    x = 3,333.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.