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Finding the Fourth Proportional to 4,808.49, 7,213.07 and 1,521.64

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Solution

The fourth proportional to 4,808.49, 7,213.07 and 1,521.64 is: 2,282.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,808.49 : 7,213.07 = 1,521.64 : x
  2. Step 2: Convert to fraction form
    4,808.49/7,213.07 = 1,521.64/x
  3. Step 3: Cross multiply
    4,808.49x = 7,213.07 × 1,521.64
  4. Step 4: Simplify right side
    4,808.49x = 10,975,695.83
  5. Step 5: Solve for x
    x = 10,975,695.83/4,808.49
  6. Step 6: Final answer
    x = 2,282.57

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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.