Home / 3,717.79-5,130.62-2,145.94

Finding the Fourth Proportional to 3,717.79, 5,130.62 and 2,145.94

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Solution

The fourth proportional to 3,717.79, 5,130.62 and 2,145.94 is: 2,961.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,717.79 : 5,130.62 = 2,145.94 : x
  2. Step 2: Convert to fraction form
    3,717.79/5,130.62 = 2,145.94/x
  3. Step 3: Cross multiply
    3,717.79x = 5,130.62 × 2,145.94
  4. Step 4: Simplify right side
    3,717.79x = 11,009,991.95
  5. Step 5: Solve for x
    x = 11,009,991.95/3,717.79
  6. Step 6: Final answer
    x = 2,961.43

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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.