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Finding the Fourth Proportional to 1,521.01, 2,282.52 and 699.25

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Solution

The fourth proportional to 1,521.01, 2,282.52 and 699.25 is: 1,049.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,521.01 : 2,282.52 = 699.25 : x
  2. Step 2: Convert to fraction form
    1,521.01/2,282.52 = 699.25/x
  3. Step 3: Cross multiply
    1,521.01x = 2,282.52 × 699.25
  4. Step 4: Simplify right side
    1,521.01x = 1,596,052.11
  5. Step 5: Solve for x
    x = 1,596,052.11/1,521.01
  6. Step 6: Final answer
    x = 1,049.34

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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.