Home / 7,720.71-11,581.59-3,824.07

Finding the Fourth Proportional to 7,720.71, 11,581.59 and 3,824.07

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Solution

The fourth proportional to 7,720.71, 11,581.59 and 3,824.07 is: 5,736.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,720.71 : 11,581.59 = 3,824.07 : x
  2. Step 2: Convert to fraction form
    7,720.71/11,581.59 = 3,824.07/x
  3. Step 3: Cross multiply
    7,720.71x = 11,581.59 × 3,824.07
  4. Step 4: Simplify right side
    7,720.71x = 44,288,810.87
  5. Step 5: Solve for x
    x = 44,288,810.87/7,720.71
  6. Step 6: Final answer
    x = 5,736.37

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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.