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Finding the Fourth Proportional to 2,016.20, 3,023.95 and 555.01

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Solution

The fourth proportional to 2,016.20, 3,023.95 and 555.01 is: 832.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,016.20 : 3,023.95 = 555.01 : x
  2. Step 2: Convert to fraction form
    2,016.20/3,023.95 = 555.01/x
  3. Step 3: Cross multiply
    2,016.20x = 3,023.95 × 555.01
  4. Step 4: Simplify right side
    2,016.20x = 1,678,322.49
  5. Step 5: Solve for x
    x = 1,678,322.49/2,016.20
  6. Step 6: Final answer
    x = 832.42

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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.