Home / 3,811.35-5,712.93-2,490.95

Finding the Fourth Proportional to 3,811.35, 5,712.93 and 2,490.95

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Solution

The fourth proportional to 3,811.35, 5,712.93 and 2,490.95 is: 3,733.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,811.35 : 5,712.93 = 2,490.95 : x
  2. Step 2: Convert to fraction form
    3,811.35/5,712.93 = 2,490.95/x
  3. Step 3: Cross multiply
    3,811.35x = 5,712.93 × 2,490.95
  4. Step 4: Simplify right side
    3,811.35x = 14,230,637.27
  5. Step 5: Solve for x
    x = 14,230,637.27/3,811.35
  6. Step 6: Final answer
    x = 3,733.75

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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.