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Finding the Fourth Proportional to 2,014.64, 3,021.52 and 553.64

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Solution

The fourth proportional to 2,014.64, 3,021.52 and 553.64 is: 830.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,014.64 : 3,021.52 = 553.64 : x
  2. Step 2: Convert to fraction form
    2,014.64/3,021.52 = 553.64/x
  3. Step 3: Cross multiply
    2,014.64x = 3,021.52 × 553.64
  4. Step 4: Simplify right side
    2,014.64x = 1,672,834.33
  5. Step 5: Solve for x
    x = 1,672,834.33/2,014.64
  6. Step 6: Final answer
    x = 830.34

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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.