Home / 2,838.27-4,257.63-890.47

Finding the Fourth Proportional to 2,838.27, 4,257.63 and 890.47

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Solution

The fourth proportional to 2,838.27, 4,257.63 and 890.47 is: 1,335.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,838.27 : 4,257.63 = 890.47 : x
  2. Step 2: Convert to fraction form
    2,838.27/4,257.63 = 890.47/x
  3. Step 3: Cross multiply
    2,838.27x = 4,257.63 × 890.47
  4. Step 4: Simplify right side
    2,838.27x = 3,791,291.79
  5. Step 5: Solve for x
    x = 3,791,291.79/2,838.27
  6. Step 6: Final answer
    x = 1,335.78

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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.