Home / 3,103.62-4,281.21-1,860.90

Finding the Fourth Proportional to 3,103.62, 4,281.21 and 1,860.90

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Solution

The fourth proportional to 3,103.62, 4,281.21 and 1,860.90 is: 2,566.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,103.62 : 4,281.21 = 1,860.90 : x
  2. Step 2: Convert to fraction form
    3,103.62/4,281.21 = 1,860.90/x
  3. Step 3: Cross multiply
    3,103.62x = 4,281.21 × 1,860.90
  4. Step 4: Simplify right side
    3,103.62x = 7,966,903.69
  5. Step 5: Solve for x
    x = 7,966,903.69/3,103.62
  6. Step 6: Final answer
    x = 2,566.97

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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.