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Finding the Fourth Proportional to 1,521.99, 2,282.11 and 482.25

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Solution

The fourth proportional to 1,521.99, 2,282.11 and 482.25 is: 723.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,521.99 : 2,282.11 = 482.25 : x
  2. Step 2: Convert to fraction form
    1,521.99/2,282.11 = 482.25/x
  3. Step 3: Cross multiply
    1,521.99x = 2,282.11 × 482.25
  4. Step 4: Simplify right side
    1,521.99x = 1,100,548.15
  5. Step 5: Solve for x
    x = 1,100,548.15/1,521.99
  6. Step 6: Final answer
    x = 723.10

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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.