Home / 2,540.80-3,506.34-1,796.05

Finding the Fourth Proportional to 2,540.80, 3,506.34 and 1,796.05

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Solution

The fourth proportional to 2,540.80, 3,506.34 and 1,796.05 is: 2,478.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,540.80 : 3,506.34 = 1,796.05 : x
  2. Step 2: Convert to fraction form
    2,540.80/3,506.34 = 1,796.05/x
  3. Step 3: Cross multiply
    2,540.80x = 3,506.34 × 1,796.05
  4. Step 4: Simplify right side
    2,540.80x = 6,297,561.96
  5. Step 5: Solve for x
    x = 6,297,561.96/2,540.80
  6. Step 6: Final answer
    x = 2,478.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.