Home / 7,439.75-11,159.42-2,759.22

Finding the Fourth Proportional to 7,439.75, 11,159.42 and 2,759.22

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Solution

The fourth proportional to 7,439.75, 11,159.42 and 2,759.22 is: 4,138.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,439.75 : 11,159.42 = 2,759.22 : x
  2. Step 2: Convert to fraction form
    7,439.75/11,159.42 = 2,759.22/x
  3. Step 3: Cross multiply
    7,439.75x = 11,159.42 × 2,759.22
  4. Step 4: Simplify right side
    7,439.75x = 30,791,225.26
  5. Step 5: Solve for x
    x = 30,791,225.26/7,439.75
  6. Step 6: Final answer
    x = 4,138.74

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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.