Home / 5,925.96-8,889.90-1,821

Finding the Fourth Proportional to 5,925.96, 8,889.90 and 1,821

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Solution

The fourth proportional to 5,925.96, 8,889.90 and 1,821 is: 2,731.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,925.96 : 8,889.90 = 1,821 : x
  2. Step 2: Convert to fraction form
    5,925.96/8,889.90 = 1,821/x
  3. Step 3: Cross multiply
    5,925.96x = 8,889.90 × 1,821
  4. Step 4: Simplify right side
    5,925.96x = 16,188,507.90
  5. Step 5: Solve for x
    x = 16,188,507.90/5,925.96
  6. Step 6: Final answer
    x = 2,731.80

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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.