Home / 3,813.13-5,718.48-1,215.46

Finding the Fourth Proportional to 3,813.13, 5,718.48 and 1,215.46

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Solution

The fourth proportional to 3,813.13, 5,718.48 and 1,215.46 is: 1,822.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,813.13 : 5,718.48 = 1,215.46 : x
  2. Step 2: Convert to fraction form
    3,813.13/5,718.48 = 1,215.46/x
  3. Step 3: Cross multiply
    3,813.13x = 5,718.48 × 1,215.46
  4. Step 4: Simplify right side
    3,813.13x = 6,950,583.70
  5. Step 5: Solve for x
    x = 6,950,583.70/3,813.13
  6. Step 6: Final answer
    x = 1,822.80

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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.