Home / 7,522.49-11,284.79-3,138.95

Finding the Fourth Proportional to 7,522.49, 11,284.79 and 3,138.95

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Solution

The fourth proportional to 7,522.49, 11,284.79 and 3,138.95 is: 4,708.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,522.49 : 11,284.79 = 3,138.95 : x
  2. Step 2: Convert to fraction form
    7,522.49/11,284.79 = 3,138.95/x
  3. Step 3: Cross multiply
    7,522.49x = 11,284.79 × 3,138.95
  4. Step 4: Simplify right side
    7,522.49x = 35,422,319.45
  5. Step 5: Solve for x
    x = 35,422,319.45/7,522.49
  6. Step 6: Final answer
    x = 4,708.86

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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.