Home / 3,186.88-4,398.10-1,860.52

Finding the Fourth Proportional to 3,186.88, 4,398.10 and 1,860.52

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Solution

The fourth proportional to 3,186.88, 4,398.10 and 1,860.52 is: 2,567.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,186.88 : 4,398.10 = 1,860.52 : x
  2. Step 2: Convert to fraction form
    3,186.88/4,398.10 = 1,860.52/x
  3. Step 3: Cross multiply
    3,186.88x = 4,398.10 × 1,860.52
  4. Step 4: Simplify right side
    3,186.88x = 8,182,753.01
  5. Step 5: Solve for x
    x = 8,182,753.01/3,186.88
  6. Step 6: Final answer
    x = 2,567.64

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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.