Home / 7,840.64-11,761.08-1,997.36

Finding the Fourth Proportional to 7,840.64, 11,761.08 and 1,997.36

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Solution

The fourth proportional to 7,840.64, 11,761.08 and 1,997.36 is: 2,996.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,840.64 : 11,761.08 = 1,997.36 : x
  2. Step 2: Convert to fraction form
    7,840.64/11,761.08 = 1,997.36/x
  3. Step 3: Cross multiply
    7,840.64x = 11,761.08 × 1,997.36
  4. Step 4: Simplify right side
    7,840.64x = 23,491,110.75
  5. Step 5: Solve for x
    x = 23,491,110.75/7,840.64
  6. Step 6: Final answer
    x = 2,996.07

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1.5x scale

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.