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Finding the Fourth Proportional to 2,379.92, 3,582.29 and 2,153.53

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Solution

The fourth proportional to 2,379.92, 3,582.29 and 2,153.53 is: 3,241.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,379.92 : 3,582.29 = 2,153.53 : x
  2. Step 2: Convert to fraction form
    2,379.92/3,582.29 = 2,153.53/x
  3. Step 3: Cross multiply
    2,379.92x = 3,582.29 × 2,153.53
  4. Step 4: Simplify right side
    2,379.92x = 7,714,565.41
  5. Step 5: Solve for x
    x = 7,714,565.41/2,379.92
  6. Step 6: Final answer
    x = 3,241.52

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.