Home / 2,539.96-3,505.20-1,421.02

Finding the Fourth Proportional to 2,539.96, 3,505.20 and 1,421.02

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Solution

The fourth proportional to 2,539.96, 3,505.20 and 1,421.02 is: 1,961.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,539.96 : 3,505.20 = 1,421.02 : x
  2. Step 2: Convert to fraction form
    2,539.96/3,505.20 = 1,421.02/x
  3. Step 3: Cross multiply
    2,539.96x = 3,505.20 × 1,421.02
  4. Step 4: Simplify right side
    2,539.96x = 4,980,971.62
  5. Step 5: Solve for x
    x = 4,980,971.62/2,539.96
  6. Step 6: Final answer
    x = 1,961.04

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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.