Home / 2,531.78-3,493.33-1,860.64

Finding the Fourth Proportional to 2,531.78, 3,493.33 and 1,860.64

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Solution

The fourth proportional to 2,531.78, 3,493.33 and 1,860.64 is: 2,567.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,531.78 : 3,493.33 = 1,860.64 : x
  2. Step 2: Convert to fraction form
    2,531.78/3,493.33 = 1,860.64/x
  3. Step 3: Cross multiply
    2,531.78x = 3,493.33 × 1,860.64
  4. Step 4: Simplify right side
    2,531.78x = 6,499,816.15
  5. Step 5: Solve for x
    x = 6,499,816.15/2,531.78
  6. Step 6: Final answer
    x = 2,567.29

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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.