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Finding the Fourth Proportional to 1,903.91, 2,857.04 and 1,888.25

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Solution

The fourth proportional to 1,903.91, 2,857.04 and 1,888.25 is: 2,833.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,903.91 : 2,857.04 = 1,888.25 : x
  2. Step 2: Convert to fraction form
    1,903.91/2,857.04 = 1,888.25/x
  3. Step 3: Cross multiply
    1,903.91x = 2,857.04 × 1,888.25
  4. Step 4: Simplify right side
    1,903.91x = 5,394,789.13
  5. Step 5: Solve for x
    x = 5,394,789.13/1,903.91
  6. Step 6: Final answer
    x = 2,833.54

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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.