Home / 5,171.79-7,759.57-2,539.02

Finding the Fourth Proportional to 5,171.79, 7,759.57 and 2,539.02

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Solution

The fourth proportional to 5,171.79, 7,759.57 and 2,539.02 is: 3,809.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,171.79 : 7,759.57 = 2,539.02 : x
  2. Step 2: Convert to fraction form
    5,171.79/7,759.57 = 2,539.02/x
  3. Step 3: Cross multiply
    5,171.79x = 7,759.57 × 2,539.02
  4. Step 4: Simplify right side
    5,171.79x = 19,701,687.29
  5. Step 5: Solve for x
    x = 19,701,687.29/5,171.79
  6. Step 6: Final answer
    x = 3,809.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.