Home / 5,418.46-8,131.35-2,646.46

Finding the Fourth Proportional to 5,418.46, 8,131.35 and 2,646.46

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Solution

The fourth proportional to 5,418.46, 8,131.35 and 2,646.46 is: 3,971.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418.46 : 8,131.35 = 2,646.46 : x
  2. Step 2: Convert to fraction form
    5,418.46/8,131.35 = 2,646.46/x
  3. Step 3: Cross multiply
    5,418.46x = 8,131.35 × 2,646.46
  4. Step 4: Simplify right side
    5,418.46x = 21,519,292.52
  5. Step 5: Solve for x
    x = 21,519,292.52/5,418.46
  6. Step 6: Final answer
    x = 3,971.48

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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.