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Finding the Fourth Proportional to 1,881.20, 2,822.16 and 582.68

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Solution

The fourth proportional to 1,881.20, 2,822.16 and 582.68 is: 874.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,881.20 : 2,822.16 = 582.68 : x
  2. Step 2: Convert to fraction form
    1,881.20/2,822.16 = 582.68/x
  3. Step 3: Cross multiply
    1,881.20x = 2,822.16 × 582.68
  4. Step 4: Simplify right side
    1,881.20x = 1,644,416.19
  5. Step 5: Solve for x
    x = 1,644,416.19/1,881.20
  6. Step 6: Final answer
    x = 874.13

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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.