Home / 2,821.59-3,894.26-1,702.60

Finding the Fourth Proportional to 2,821.59, 3,894.26 and 1,702.60

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Solution

The fourth proportional to 2,821.59, 3,894.26 and 1,702.60 is: 2,349.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,821.59 : 3,894.26 = 1,702.60 : x
  2. Step 2: Convert to fraction form
    2,821.59/3,894.26 = 1,702.60/x
  3. Step 3: Cross multiply
    2,821.59x = 3,894.26 × 1,702.60
  4. Step 4: Simplify right side
    2,821.59x = 6,630,348.83
  5. Step 5: Solve for x
    x = 6,630,348.83/2,821.59
  6. Step 6: Final answer
    x = 2,349.86

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1.5x scale

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.