Home / 3,717.77-5,130.34-2,146.37

Finding the Fourth Proportional to 3,717.77, 5,130.34 and 2,146.37

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Solution

The fourth proportional to 3,717.77, 5,130.34 and 2,146.37 is: 2,961.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,717.77 : 5,130.34 = 2,146.37 : x
  2. Step 2: Convert to fraction form
    3,717.77/5,130.34 = 2,146.37/x
  3. Step 3: Cross multiply
    3,717.77x = 5,130.34 × 2,146.37
  4. Step 4: Simplify right side
    3,717.77x = 11,011,576.85
  5. Step 5: Solve for x
    x = 11,011,576.85/3,717.77
  6. Step 6: Final answer
    x = 2,961.88

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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.