Home / 6,840.90-9,440.45-3,697.09

Finding the Fourth Proportional to 6,840.90, 9,440.45 and 3,697.09

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Solution

The fourth proportional to 6,840.90, 9,440.45 and 3,697.09 is: 5,101.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,840.90 : 9,440.45 = 3,697.09 : x
  2. Step 2: Convert to fraction form
    6,840.90/9,440.45 = 3,697.09/x
  3. Step 3: Cross multiply
    6,840.90x = 9,440.45 × 3,697.09
  4. Step 4: Simplify right side
    6,840.90x = 34,902,185.86
  5. Step 5: Solve for x
    x = 34,902,185.86/6,840.90
  6. Step 6: Final answer
    x = 5,101.99

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Half scale
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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.