Home / 3,516.51-5,272.11-2,129.51

Finding the Fourth Proportional to 3,516.51, 5,272.11 and 2,129.51

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Solution

The fourth proportional to 3,516.51, 5,272.11 and 2,129.51 is: 3,192.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,516.51 : 5,272.11 = 2,129.51 : x
  2. Step 2: Convert to fraction form
    3,516.51/5,272.11 = 2,129.51/x
  3. Step 3: Cross multiply
    3,516.51x = 5,272.11 × 2,129.51
  4. Step 4: Simplify right side
    3,516.51x = 11,226,987.14
  5. Step 5: Solve for x
    x = 11,226,987.14/3,516.51
  6. Step 6: Final answer
    x = 3,192.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.