Home / 3,890.10-5,832.39-1,807.89

Finding the Fourth Proportional to 3,890.10, 5,832.39 and 1,807.89

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Solution

The fourth proportional to 3,890.10, 5,832.39 and 1,807.89 is: 2,710.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,890.10 : 5,832.39 = 1,807.89 : x
  2. Step 2: Convert to fraction form
    3,890.10/5,832.39 = 1,807.89/x
  3. Step 3: Cross multiply
    3,890.10x = 5,832.39 × 1,807.89
  4. Step 4: Simplify right side
    3,890.10x = 10,544,319.56
  5. Step 5: Solve for x
    x = 10,544,319.56/3,890.10
  6. Step 6: Final answer
    x = 2,710.55

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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.