Home / 3,274.78-4,518.84-1,877.80

Finding the Fourth Proportional to 3,274.78, 4,518.84 and 1,877.80

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Solution

The fourth proportional to 3,274.78, 4,518.84 and 1,877.80 is: 2,591.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,274.78 : 4,518.84 = 1,877.80 : x
  2. Step 2: Convert to fraction form
    3,274.78/4,518.84 = 1,877.80/x
  3. Step 3: Cross multiply
    3,274.78x = 4,518.84 × 1,877.80
  4. Step 4: Simplify right side
    3,274.78x = 8,485,477.75
  5. Step 5: Solve for x
    x = 8,485,477.75/3,274.78
  6. Step 6: Final answer
    x = 2,591.16

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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.