Home / 3,717.12-5,129.78-2,038.69

Finding the Fourth Proportional to 3,717.12, 5,129.78 and 2,038.69

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Solution

The fourth proportional to 3,717.12, 5,129.78 and 2,038.69 is: 2,813.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,717.12 : 5,129.78 = 2,038.69 : x
  2. Step 2: Convert to fraction form
    3,717.12/5,129.78 = 2,038.69/x
  3. Step 3: Cross multiply
    3,717.12x = 5,129.78 × 2,038.69
  4. Step 4: Simplify right side
    3,717.12x = 10,458,031.19
  5. Step 5: Solve for x
    x = 10,458,031.19/3,717.12
  6. Step 6: Final answer
    x = 2,813.48

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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.