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Finding the Fourth Proportional to 2,015.61, 3,023.43 and 554.73

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Solution

The fourth proportional to 2,015.61, 3,023.43 and 554.73 is: 832.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,015.61 : 3,023.43 = 554.73 : x
  2. Step 2: Convert to fraction form
    2,015.61/3,023.43 = 554.73/x
  3. Step 3: Cross multiply
    2,015.61x = 3,023.43 × 554.73
  4. Step 4: Simplify right side
    2,015.61x = 1,677,187.32
  5. Step 5: Solve for x
    x = 1,677,187.32/2,015.61
  6. Step 6: Final answer
    x = 832.10

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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.