Home / 7,322.63-10,986.83-3,215.75

Finding the Fourth Proportional to 7,322.63, 10,986.83 and 3,215.75

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Solution

The fourth proportional to 7,322.63, 10,986.83 and 3,215.75 is: 4,824.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,322.63 : 10,986.83 = 3,215.75 : x
  2. Step 2: Convert to fraction form
    7,322.63/10,986.83 = 3,215.75/x
  3. Step 3: Cross multiply
    7,322.63x = 10,986.83 × 3,215.75
  4. Step 4: Simplify right side
    7,322.63x = 35,330,882.49
  5. Step 5: Solve for x
    x = 35,330,882.49/7,322.63
  6. Step 6: Final answer
    x = 4,824.89

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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.