Home / 2,542.12-3,813.66-810.28

Finding the Fourth Proportional to 2,542.12, 3,813.66 and 810.28

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Solution

The fourth proportional to 2,542.12, 3,813.66 and 810.28 is: 1,215.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,542.12 : 3,813.66 = 810.28 : x
  2. Step 2: Convert to fraction form
    2,542.12/3,813.66 = 810.28/x
  3. Step 3: Cross multiply
    2,542.12x = 3,813.66 × 810.28
  4. Step 4: Simplify right side
    2,542.12x = 3,090,132.42
  5. Step 5: Solve for x
    x = 3,090,132.42/2,542.12
  6. Step 6: Final answer
    x = 1,215.57

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1.5x scale

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.