Home / 3,871.66-5,816.99-2,485.57

Finding the Fourth Proportional to 3,871.66, 5,816.99 and 2,485.57

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Solution

The fourth proportional to 3,871.66, 5,816.99 and 2,485.57 is: 3,734.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,871.66 : 5,816.99 = 2,485.57 : x
  2. Step 2: Convert to fraction form
    3,871.66/5,816.99 = 2,485.57/x
  3. Step 3: Cross multiply
    3,871.66x = 5,816.99 × 2,485.57
  4. Step 4: Simplify right side
    3,871.66x = 14,458,535.83
  5. Step 5: Solve for x
    x = 14,458,535.83/3,871.66
  6. Step 6: Final answer
    x = 3,734.45

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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.