Home / 3,948.57-5,922.90-1,485.09

Finding the Fourth Proportional to 3,948.57, 5,922.90 and 1,485.09

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Solution

The fourth proportional to 3,948.57, 5,922.90 and 1,485.09 is: 2,227.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,948.57 : 5,922.90 = 1,485.09 : x
  2. Step 2: Convert to fraction form
    3,948.57/5,922.90 = 1,485.09/x
  3. Step 3: Cross multiply
    3,948.57x = 5,922.90 × 1,485.09
  4. Step 4: Simplify right side
    3,948.57x = 8,796,039.56
  5. Step 5: Solve for x
    x = 8,796,039.56/3,948.57
  6. Step 6: Final answer
    x = 2,227.65

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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.