Home / 5,196.98-7,790.60-1,909.19

Finding the Fourth Proportional to 5,196.98, 7,790.60 and 1,909.19

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Solution

The fourth proportional to 5,196.98, 7,790.60 and 1,909.19 is: 2,861.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,196.98 : 7,790.60 = 1,909.19 : x
  2. Step 2: Convert to fraction form
    5,196.98/7,790.60 = 1,909.19/x
  3. Step 3: Cross multiply
    5,196.98x = 7,790.60 × 1,909.19
  4. Step 4: Simplify right side
    5,196.98x = 14,873,700.24
  5. Step 5: Solve for x
    x = 14,873,700.24/5,196.98
  6. Step 6: Final answer
    x = 2,861.99

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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.