Home / 2,840.72-3,914.34-2,802.44

Finding the Fourth Proportional to 2,840.72, 3,914.34 and 2,802.44

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Solution

The fourth proportional to 2,840.72, 3,914.34 and 2,802.44 is: 3,861.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,840.72 : 3,914.34 = 2,802.44 : x
  2. Step 2: Convert to fraction form
    2,840.72/3,914.34 = 2,802.44/x
  3. Step 3: Cross multiply
    2,840.72x = 3,914.34 × 2,802.44
  4. Step 4: Simplify right side
    2,840.72x = 10,969,702.99
  5. Step 5: Solve for x
    x = 10,969,702.99/2,840.72
  6. Step 6: Final answer
    x = 3,861.59

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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.