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Finding the Fourth Proportional to 2,023.68, 3,036 and 928.80

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Solution

The fourth proportional to 2,023.68, 3,036 and 928.80 is: 1,393.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,023.68 : 3,036 = 928.80 : x
  2. Step 2: Convert to fraction form
    2,023.68/3,036 = 928.80/x
  3. Step 3: Cross multiply
    2,023.68x = 3,036 × 928.80
  4. Step 4: Simplify right side
    2,023.68x = 2,819,836.80
  5. Step 5: Solve for x
    x = 2,819,836.80/2,023.68
  6. Step 6: Final answer
    x = 1,393.42

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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.