Home / 2,821.58-3,894.26-1,702.61

Finding the Fourth Proportional to 2,821.58, 3,894.26 and 1,702.61

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Solution

The fourth proportional to 2,821.58, 3,894.26 and 1,702.61 is: 2,349.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,821.58 : 3,894.26 = 1,702.61 : x
  2. Step 2: Convert to fraction form
    2,821.58/3,894.26 = 1,702.61/x
  3. Step 3: Cross multiply
    2,821.58x = 3,894.26 × 1,702.61
  4. Step 4: Simplify right side
    2,821.58x = 6,630,378.03
  5. Step 5: Solve for x
    x = 6,630,378.03/2,821.58
  6. Step 6: Final answer
    x = 2,349.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.