Home / 3,990.53-5,506.72-2,197.94

Finding the Fourth Proportional to 3,990.53, 5,506.72 and 2,197.94

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Solution

The fourth proportional to 3,990.53, 5,506.72 and 2,197.94 is: 3,033.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,990.53 : 5,506.72 = 2,197.94 : x
  2. Step 2: Convert to fraction form
    3,990.53/5,506.72 = 2,197.94/x
  3. Step 3: Cross multiply
    3,990.53x = 5,506.72 × 2,197.94
  4. Step 4: Simplify right side
    3,990.53x = 12,103,407.13
  5. Step 5: Solve for x
    x = 12,103,407.13/3,990.53
  6. Step 6: Final answer
    x = 3,033.03

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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.