Home / 1,539.88-2,125.44-1,016.68

Finding the Fourth Proportional to 1,539.88, 2,125.44 and 1,016.68

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Solution

The fourth proportional to 1,539.88, 2,125.44 and 1,016.68 is: 1,403.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,539.88 : 2,125.44 = 1,016.68 : x
  2. Step 2: Convert to fraction form
    1,539.88/2,125.44 = 1,016.68/x
  3. Step 3: Cross multiply
    1,539.88x = 2,125.44 × 1,016.68
  4. Step 4: Simplify right side
    1,539.88x = 2,160,892.34
  5. Step 5: Solve for x
    x = 2,160,892.34/1,539.88
  6. Step 6: Final answer
    x = 1,403.29

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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.