Home / 3,617.19-5,430.80-1,863.44

Finding the Fourth Proportional to 3,617.19, 5,430.80 and 1,863.44

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Solution

The fourth proportional to 3,617.19, 5,430.80 and 1,863.44 is: 2,797.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,617.19 : 5,430.80 = 1,863.44 : x
  2. Step 2: Convert to fraction form
    3,617.19/5,430.80 = 1,863.44/x
  3. Step 3: Cross multiply
    3,617.19x = 5,430.80 × 1,863.44
  4. Step 4: Simplify right side
    3,617.19x = 10,119,969.95
  5. Step 5: Solve for x
    x = 10,119,969.95/3,617.19
  6. Step 6: Final answer
    x = 2,797.74

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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.