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Finding the Fourth Proportional to 5,921.78, 8,885.79 and 2,800.19

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Solution

The fourth proportional to 5,921.78, 8,885.79 and 2,800.19 is: 4,201.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,921.78 : 8,885.79 = 2,800.19 : x
  2. Step 2: Convert to fraction form
    5,921.78/8,885.79 = 2,800.19/x
  3. Step 3: Cross multiply
    5,921.78x = 8,885.79 × 2,800.19
  4. Step 4: Simplify right side
    5,921.78x = 24,881,900.30
  5. Step 5: Solve for x
    x = 24,881,900.30/5,921.78
  6. Step 6: Final answer
    x = 4,201.76

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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.