Home / 7,885.07-11,824.71-2,619.12

Finding the Fourth Proportional to 7,885.07, 11,824.71 and 2,619.12

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Solution

The fourth proportional to 7,885.07, 11,824.71 and 2,619.12 is: 3,927.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,885.07 : 11,824.71 = 2,619.12 : x
  2. Step 2: Convert to fraction form
    7,885.07/11,824.71 = 2,619.12/x
  3. Step 3: Cross multiply
    7,885.07x = 11,824.71 × 2,619.12
  4. Step 4: Simplify right side
    7,885.07x = 30,970,321.36
  5. Step 5: Solve for x
    x = 30,970,321.36/7,885.07
  6. Step 6: Final answer
    x = 3,927.72

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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.