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Finding the Fourth Proportional to 2,883.24, 3,978.64 and 1,624.04

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Solution

The fourth proportional to 2,883.24, 3,978.64 and 1,624.04 is: 2,241.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,883.24 : 3,978.64 = 1,624.04 : x
  2. Step 2: Convert to fraction form
    2,883.24/3,978.64 = 1,624.04/x
  3. Step 3: Cross multiply
    2,883.24x = 3,978.64 × 1,624.04
  4. Step 4: Simplify right side
    2,883.24x = 6,461,470.51
  5. Step 5: Solve for x
    x = 6,461,470.51/2,883.24
  6. Step 6: Final answer
    x = 2,241.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.