Home / 5,207.20-7,813.85-1,922.58

Finding the Fourth Proportional to 5,207.20, 7,813.85 and 1,922.58

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Solution

The fourth proportional to 5,207.20, 7,813.85 and 1,922.58 is: 2,885.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,207.20 : 7,813.85 = 1,922.58 : x
  2. Step 2: Convert to fraction form
    5,207.20/7,813.85 = 1,922.58/x
  3. Step 3: Cross multiply
    5,207.20x = 7,813.85 × 1,922.58
  4. Step 4: Simplify right side
    5,207.20x = 15,022,751.73
  5. Step 5: Solve for x
    x = 15,022,751.73/5,207.20
  6. Step 6: Final answer
    x = 2,885.00

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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.