Home / 3,810.88-5,717.40-1,214.02

Finding the Fourth Proportional to 3,810.88, 5,717.40 and 1,214.02

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Solution

The fourth proportional to 3,810.88, 5,717.40 and 1,214.02 is: 1,821.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,810.88 : 5,717.40 = 1,214.02 : x
  2. Step 2: Convert to fraction form
    3,810.88/5,717.40 = 1,214.02/x
  3. Step 3: Cross multiply
    3,810.88x = 5,717.40 × 1,214.02
  4. Step 4: Simplify right side
    3,810.88x = 6,941,037.95
  5. Step 5: Solve for x
    x = 6,941,037.95/3,810.88
  6. Step 6: Final answer
    x = 1,821.37

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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.