Home / 2,539.97-3,505.25-1,420.96

Finding the Fourth Proportional to 2,539.97, 3,505.25 and 1,420.96

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Solution

The fourth proportional to 2,539.97, 3,505.25 and 1,420.96 is: 1,960.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,539.97 : 3,505.25 = 1,420.96 : x
  2. Step 2: Convert to fraction form
    2,539.97/3,505.25 = 1,420.96/x
  3. Step 3: Cross multiply
    2,539.97x = 3,505.25 × 1,420.96
  4. Step 4: Simplify right side
    2,539.97x = 4,980,795.41
  5. Step 5: Solve for x
    x = 4,980,795.41/2,539.97
  6. Step 6: Final answer
    x = 1,960.97

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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.