Home / 2,539.88-3,505.37-1,421.25

Finding the Fourth Proportional to 2,539.88, 3,505.37 and 1,421.25

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Solution

The fourth proportional to 2,539.88, 3,505.37 and 1,421.25 is: 1,961.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,539.88 : 3,505.37 = 1,421.25 : x
  2. Step 2: Convert to fraction form
    2,539.88/3,505.37 = 1,421.25/x
  3. Step 3: Cross multiply
    2,539.88x = 3,505.37 × 1,421.25
  4. Step 4: Simplify right side
    2,539.88x = 4,982,007.11
  5. Step 5: Solve for x
    x = 4,982,007.11/2,539.88
  6. Step 6: Final answer
    x = 1,961.51

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1.5x scale

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.