Home / 3,274.80-4,887.18-2,540.40

Finding the Fourth Proportional to 3,274.80, 4,887.18 and 2,540.40

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Solution

The fourth proportional to 3,274.80, 4,887.18 and 2,540.40 is: 3,791.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,274.80 : 4,887.18 = 2,540.40 : x
  2. Step 2: Convert to fraction form
    3,274.80/4,887.18 = 2,540.40/x
  3. Step 3: Cross multiply
    3,274.80x = 4,887.18 × 2,540.40
  4. Step 4: Simplify right side
    3,274.80x = 12,415,392.07
  5. Step 5: Solve for x
    x = 12,415,392.07/3,274.80
  6. Step 6: Final answer
    x = 3,791.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.