Home / 3,135.25-4,701.45-1,493.78

Finding the Fourth Proportional to 3,135.25, 4,701.45 and 1,493.78

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Solution

The fourth proportional to 3,135.25, 4,701.45 and 1,493.78 is: 2,239.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,135.25 : 4,701.45 = 1,493.78 : x
  2. Step 2: Convert to fraction form
    3,135.25/4,701.45 = 1,493.78/x
  3. Step 3: Cross multiply
    3,135.25x = 4,701.45 × 1,493.78
  4. Step 4: Simplify right side
    3,135.25x = 7,022,931.98
  5. Step 5: Solve for x
    x = 7,022,931.98/3,135.25
  6. Step 6: Final answer
    x = 2,239.99

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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.