Home / 3,517.64-5,274.33-2,420.80

Finding the Fourth Proportional to 3,517.64, 5,274.33 and 2,420.80

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Solution

The fourth proportional to 3,517.64, 5,274.33 and 2,420.80 is: 3,629.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,517.64 : 5,274.33 = 2,420.80 : x
  2. Step 2: Convert to fraction form
    3,517.64/5,274.33 = 2,420.80/x
  3. Step 3: Cross multiply
    3,517.64x = 5,274.33 × 2,420.80
  4. Step 4: Simplify right side
    3,517.64x = 12,768,075.80
  5. Step 5: Solve for x
    x = 12,768,075.80/3,517.64
  6. Step 6: Final answer
    x = 3,629.73

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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.