Home / 2,539.77-3,504.66-1,420.56

Finding the Fourth Proportional to 2,539.77, 3,504.66 and 1,420.56

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Solution

The fourth proportional to 2,539.77, 3,504.66 and 1,420.56 is: 1,960.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,539.77 : 3,504.66 = 1,420.56 : x
  2. Step 2: Convert to fraction form
    2,539.77/3,504.66 = 1,420.56/x
  3. Step 3: Cross multiply
    2,539.77x = 3,504.66 × 1,420.56
  4. Step 4: Simplify right side
    2,539.77x = 4,978,579.81
  5. Step 5: Solve for x
    x = 4,978,579.81/2,539.77
  6. Step 6: Final answer
    x = 1,960.25

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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.