Home / 2,857.25-4,285.67-1,008.51

Finding the Fourth Proportional to 2,857.25, 4,285.67 and 1,008.51

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Solution

The fourth proportional to 2,857.25, 4,285.67 and 1,008.51 is: 1,512.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,857.25 : 4,285.67 = 1,008.51 : x
  2. Step 2: Convert to fraction form
    2,857.25/4,285.67 = 1,008.51/x
  3. Step 3: Cross multiply
    2,857.25x = 4,285.67 × 1,008.51
  4. Step 4: Simplify right side
    2,857.25x = 4,322,136.01
  5. Step 5: Solve for x
    x = 4,322,136.01/2,857.25
  6. Step 6: Final answer
    x = 1,512.69

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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.