Home / 3,717.27-5,128.93-2,145.36

Finding the Fourth Proportional to 3,717.27, 5,128.93 and 2,145.36

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Solution

The fourth proportional to 3,717.27, 5,128.93 and 2,145.36 is: 2,960.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,717.27 : 5,128.93 = 2,145.36 : x
  2. Step 2: Convert to fraction form
    3,717.27/5,128.93 = 2,145.36/x
  3. Step 3: Cross multiply
    3,717.27x = 5,128.93 × 2,145.36
  4. Step 4: Simplify right side
    3,717.27x = 11,003,401.26
  5. Step 5: Solve for x
    x = 11,003,401.26/3,717.27
  6. Step 6: Final answer
    x = 2,960.08

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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.