Home / 3,717.54-5,130.20-2,145.64

Finding the Fourth Proportional to 3,717.54, 5,130.20 and 2,145.64

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Solution

The fourth proportional to 3,717.54, 5,130.20 and 2,145.64 is: 2,960.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,717.54 : 5,130.20 = 2,145.64 : x
  2. Step 2: Convert to fraction form
    3,717.54/5,130.20 = 2,145.64/x
  3. Step 3: Cross multiply
    3,717.54x = 5,130.20 × 2,145.64
  4. Step 4: Simplify right side
    3,717.54x = 11,007,536.68
  5. Step 5: Solve for x
    x = 11,007,536.68/3,717.54
  6. Step 6: Final answer
    x = 2,960.97

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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.