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Finding the Fourth Proportional to 5,221.26, 7,832.16 and 2,621.16

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Solution

The fourth proportional to 5,221.26, 7,832.16 and 2,621.16 is: 3,931.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,221.26 : 7,832.16 = 2,621.16 : x
  2. Step 2: Convert to fraction form
    5,221.26/7,832.16 = 2,621.16/x
  3. Step 3: Cross multiply
    5,221.26x = 7,832.16 × 2,621.16
  4. Step 4: Simplify right side
    5,221.26x = 20,529,344.51
  5. Step 5: Solve for x
    x = 20,529,344.51/5,221.26
  6. Step 6: Final answer
    x = 3,931.88

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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.