Home / 3,188.30-4,789.97-1,875.42

Finding the Fourth Proportional to 3,188.30, 4,789.97 and 1,875.42

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Solution

The fourth proportional to 3,188.30, 4,789.97 and 1,875.42 is: 2,817.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,188.30 : 4,789.97 = 1,875.42 : x
  2. Step 2: Convert to fraction form
    3,188.30/4,789.97 = 1,875.42/x
  3. Step 3: Cross multiply
    3,188.30x = 4,789.97 × 1,875.42
  4. Step 4: Simplify right side
    3,188.30x = 8,983,210.23
  5. Step 5: Solve for x
    x = 8,983,210.23/3,188.30
  6. Step 6: Final answer
    x = 2,817.55

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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.