Home / 3,718.51-5,131.53-2,039.96

Finding the Fourth Proportional to 3,718.51, 5,131.53 and 2,039.96

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Solution

The fourth proportional to 3,718.51, 5,131.53 and 2,039.96 is: 2,815.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,718.51 : 5,131.53 = 2,039.96 : x
  2. Step 2: Convert to fraction form
    3,718.51/5,131.53 = 2,039.96/x
  3. Step 3: Cross multiply
    3,718.51x = 5,131.53 × 2,039.96
  4. Step 4: Simplify right side
    3,718.51x = 10,468,128.77
  5. Step 5: Solve for x
    x = 10,468,128.77/3,718.51
  6. Step 6: Final answer
    x = 2,815.14

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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.