Home / 3,188.11-4,401.09-2,127.64

Finding the Fourth Proportional to 3,188.11, 4,401.09 and 2,127.64

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Solution

The fourth proportional to 3,188.11, 4,401.09 and 2,127.64 is: 2,937.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,188.11 : 4,401.09 = 2,127.64 : x
  2. Step 2: Convert to fraction form
    3,188.11/4,401.09 = 2,127.64/x
  3. Step 3: Cross multiply
    3,188.11x = 4,401.09 × 2,127.64
  4. Step 4: Simplify right side
    3,188.11x = 9,363,935.13
  5. Step 5: Solve for x
    x = 9,363,935.13/3,188.11
  6. Step 6: Final answer
    x = 2,937.14

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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.