Home / 3,186.77-4,389.89-2,713.14

Finding the Fourth Proportional to 3,186.77, 4,389.89 and 2,713.14

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Solution

The fourth proportional to 3,186.77, 4,389.89 and 2,713.14 is: 3,737.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,186.77 : 4,389.89 = 2,713.14 : x
  2. Step 2: Convert to fraction form
    3,186.77/4,389.89 = 2,713.14/x
  3. Step 3: Cross multiply
    3,186.77x = 4,389.89 × 2,713.14
  4. Step 4: Simplify right side
    3,186.77x = 11,910,372.59
  5. Step 5: Solve for x
    x = 11,910,372.59/3,186.77
  6. Step 6: Final answer
    x = 3,737.45

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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.