Home / 7,322.38-10,986.45-3,215.50

Finding the Fourth Proportional to 7,322.38, 10,986.45 and 3,215.50

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Solution

The fourth proportional to 7,322.38, 10,986.45 and 3,215.50 is: 4,824.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,322.38 : 10,986.45 = 3,215.50 : x
  2. Step 2: Convert to fraction form
    7,322.38/10,986.45 = 3,215.50/x
  3. Step 3: Cross multiply
    7,322.38x = 10,986.45 × 3,215.50
  4. Step 4: Simplify right side
    7,322.38x = 35,326,929.98
  5. Step 5: Solve for x
    x = 35,326,929.98/7,322.38
  6. Step 6: Final answer
    x = 4,824.51

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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.