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Finding the Fourth Proportional to 6,811.56, 10,217.54 and 1,881.56

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Solution

The fourth proportional to 6,811.56, 10,217.54 and 1,881.56 is: 2,822.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,811.56 : 10,217.54 = 1,881.56 : x
  2. Step 2: Convert to fraction form
    6,811.56/10,217.54 = 1,881.56/x
  3. Step 3: Cross multiply
    6,811.56x = 10,217.54 × 1,881.56
  4. Step 4: Simplify right side
    6,811.56x = 19,224,944.81
  5. Step 5: Solve for x
    x = 19,224,944.81/6,811.56
  6. Step 6: Final answer
    x = 2,822.40

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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.