Home / 7,215.64-10,824.18-3,321.16

Finding the Fourth Proportional to 7,215.64, 10,824.18 and 3,321.16

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Solution

The fourth proportional to 7,215.64, 10,824.18 and 3,321.16 is: 4,982.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,215.64 : 10,824.18 = 3,321.16 : x
  2. Step 2: Convert to fraction form
    7,215.64/10,824.18 = 3,321.16/x
  3. Step 3: Cross multiply
    7,215.64x = 10,824.18 × 3,321.16
  4. Step 4: Simplify right side
    7,215.64x = 35,948,833.65
  5. Step 5: Solve for x
    x = 35,948,833.65/7,215.64
  6. Step 6: Final answer
    x = 4,982.07

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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.