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Finding the Fourth Proportional to 2,327.76, 3,212.76 and 1,383.24

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Solution

The fourth proportional to 2,327.76, 3,212.76 and 1,383.24 is: 1,909.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,327.76 : 3,212.76 = 1,383.24 : x
  2. Step 2: Convert to fraction form
    2,327.76/3,212.76 = 1,383.24/x
  3. Step 3: Cross multiply
    2,327.76x = 3,212.76 × 1,383.24
  4. Step 4: Simplify right side
    2,327.76x = 4,444,018.14
  5. Step 5: Solve for x
    x = 4,444,018.14/2,327.76
  6. Step 6: Final answer
    x = 1,909.14

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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.