Home / 3,455.43-5,184.54-1,813.05

Finding the Fourth Proportional to 3,455.43, 5,184.54 and 1,813.05

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Solution

The fourth proportional to 3,455.43, 5,184.54 and 1,813.05 is: 2,720.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,455.43 : 5,184.54 = 1,813.05 : x
  2. Step 2: Convert to fraction form
    3,455.43/5,184.54 = 1,813.05/x
  3. Step 3: Cross multiply
    3,455.43x = 5,184.54 × 1,813.05
  4. Step 4: Simplify right side
    3,455.43x = 9,399,830.25
  5. Step 5: Solve for x
    x = 9,399,830.25/3,455.43
  6. Step 6: Final answer
    x = 2,720.31

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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.