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Finding the Fourth Proportional to 3,504.87, 5,256.50 and 1,860.57

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Solution

The fourth proportional to 3,504.87, 5,256.50 and 1,860.57 is: 2,790.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,504.87 : 5,256.50 = 1,860.57 : x
  2. Step 2: Convert to fraction form
    3,504.87/5,256.50 = 1,860.57/x
  3. Step 3: Cross multiply
    3,504.87x = 5,256.50 × 1,860.57
  4. Step 4: Simplify right side
    3,504.87x = 9,780,076.90
  5. Step 5: Solve for x
    x = 9,780,076.90/3,504.87
  6. Step 6: Final answer
    x = 2,790.43

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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.