Home / 1,885.52-2,823.66-1,328.86

Finding the Fourth Proportional to 1,885.52, 2,823.66 and 1,328.86

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Solution

The fourth proportional to 1,885.52, 2,823.66 and 1,328.86 is: 1,990.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,885.52 : 2,823.66 = 1,328.86 : x
  2. Step 2: Convert to fraction form
    1,885.52/2,823.66 = 1,328.86/x
  3. Step 3: Cross multiply
    1,885.52x = 2,823.66 × 1,328.86
  4. Step 4: Simplify right side
    1,885.52x = 3,752,236.47
  5. Step 5: Solve for x
    x = 3,752,236.47/1,885.52
  6. Step 6: Final answer
    x = 1,990.03

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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.