Home / 3,325.02-4,990.05-1,377.90

Finding the Fourth Proportional to 3,325.02, 4,990.05 and 1,377.90

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Solution

The fourth proportional to 3,325.02, 4,990.05 and 1,377.90 is: 2,067.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,325.02 : 4,990.05 = 1,377.90 : x
  2. Step 2: Convert to fraction form
    3,325.02/4,990.05 = 1,377.90/x
  3. Step 3: Cross multiply
    3,325.02x = 4,990.05 × 1,377.90
  4. Step 4: Simplify right side
    3,325.02x = 6,875,789.90
  5. Step 5: Solve for x
    x = 6,875,789.90/3,325.02
  6. Step 6: Final answer
    x = 2,067.89

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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.