Home / 3,678.10-5,516.13-1,825.90

Finding the Fourth Proportional to 3,678.10, 5,516.13 and 1,825.90

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Solution

The fourth proportional to 3,678.10, 5,516.13 and 1,825.90 is: 2,738.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,678.10 : 5,516.13 = 1,825.90 : x
  2. Step 2: Convert to fraction form
    3,678.10/5,516.13 = 1,825.90/x
  3. Step 3: Cross multiply
    3,678.10x = 5,516.13 × 1,825.90
  4. Step 4: Simplify right side
    3,678.10x = 10,071,901.77
  5. Step 5: Solve for x
    x = 10,071,901.77/3,678.10
  6. Step 6: Final answer
    x = 2,738.34

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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.