Home / 3,456.91-5,181.51-1,813.64

Finding the Fourth Proportional to 3,456.91, 5,181.51 and 1,813.64

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Solution

The fourth proportional to 3,456.91, 5,181.51 and 1,813.64 is: 2,718.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,456.91 : 5,181.51 = 1,813.64 : x
  2. Step 2: Convert to fraction form
    3,456.91/5,181.51 = 1,813.64/x
  3. Step 3: Cross multiply
    3,456.91x = 5,181.51 × 1,813.64
  4. Step 4: Simplify right side
    3,456.91x = 9,397,393.80
  5. Step 5: Solve for x
    x = 9,397,393.80/3,456.91
  6. Step 6: Final answer
    x = 2,718.44

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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.