Home / 3,968.15-5,475.66-2,199.72

Finding the Fourth Proportional to 3,968.15, 5,475.66 and 2,199.72

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Solution

The fourth proportional to 3,968.15, 5,475.66 and 2,199.72 is: 3,035.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,968.15 : 5,475.66 = 2,199.72 : x
  2. Step 2: Convert to fraction form
    3,968.15/5,475.66 = 2,199.72/x
  3. Step 3: Cross multiply
    3,968.15x = 5,475.66 × 2,199.72
  4. Step 4: Simplify right side
    3,968.15x = 12,044,918.82
  5. Step 5: Solve for x
    x = 12,044,918.82/3,968.15
  6. Step 6: Final answer
    x = 3,035.40

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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.