Home / 7,839.84-11,758.88-3,159.04

Finding the Fourth Proportional to 7,839.84, 11,758.88 and 3,159.04

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Solution

The fourth proportional to 7,839.84, 11,758.88 and 3,159.04 is: 4,738.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,839.84 : 11,758.88 = 3,159.04 : x
  2. Step 2: Convert to fraction form
    7,839.84/11,758.88 = 3,159.04/x
  3. Step 3: Cross multiply
    7,839.84x = 11,758.88 × 3,159.04
  4. Step 4: Simplify right side
    7,839.84x = 37,146,772.28
  5. Step 5: Solve for x
    x = 37,146,772.28/7,839.84
  6. Step 6: Final answer
    x = 4,738.21

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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.