Home / 1,904.28-2,853.48-1,285.56

Finding the Fourth Proportional to 1,904.28, 2,853.48 and 1,285.56

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Solution

The fourth proportional to 1,904.28, 2,853.48 and 1,285.56 is: 1,926.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,904.28 : 2,853.48 = 1,285.56 : x
  2. Step 2: Convert to fraction form
    1,904.28/2,853.48 = 1,285.56/x
  3. Step 3: Cross multiply
    1,904.28x = 2,853.48 × 1,285.56
  4. Step 4: Simplify right side
    1,904.28x = 3,668,319.75
  5. Step 5: Solve for x
    x = 3,668,319.75/1,904.28
  6. Step 6: Final answer
    x = 1,926.36

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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.