Home / 7,759.51-11,639.84-2,422.01

Finding the Fourth Proportional to 7,759.51, 11,639.84 and 2,422.01

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Solution

The fourth proportional to 7,759.51, 11,639.84 and 2,422.01 is: 3,633.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,759.51 : 11,639.84 = 2,422.01 : x
  2. Step 2: Convert to fraction form
    7,759.51/11,639.84 = 2,422.01/x
  3. Step 3: Cross multiply
    7,759.51x = 11,639.84 × 2,422.01
  4. Step 4: Simplify right side
    7,759.51x = 28,191,825.87
  5. Step 5: Solve for x
    x = 28,191,825.87/7,759.51
  6. Step 6: Final answer
    x = 3,633.20

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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.