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Finding the Fourth Proportional to 2,406.52, 3,611.10 and 1,862.20

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Solution

The fourth proportional to 2,406.52, 3,611.10 and 1,862.20 is: 2,794.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,406.52 : 3,611.10 = 1,862.20 : x
  2. Step 2: Convert to fraction form
    2,406.52/3,611.10 = 1,862.20/x
  3. Step 3: Cross multiply
    2,406.52x = 3,611.10 × 1,862.20
  4. Step 4: Simplify right side
    2,406.52x = 6,724,590.42
  5. Step 5: Solve for x
    x = 6,724,590.42/2,406.52
  6. Step 6: Final answer
    x = 2,794.32

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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.