Home / 5,196.81-7,790.58-1,909.14

Finding the Fourth Proportional to 5,196.81, 7,790.58 and 1,909.14

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Solution

The fourth proportional to 5,196.81, 7,790.58 and 1,909.14 is: 2,862.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,196.81 : 7,790.58 = 1,909.14 : x
  2. Step 2: Convert to fraction form
    5,196.81/7,790.58 = 1,909.14/x
  3. Step 3: Cross multiply
    5,196.81x = 7,790.58 × 1,909.14
  4. Step 4: Simplify right side
    5,196.81x = 14,873,307.90
  5. Step 5: Solve for x
    x = 14,873,307.90/5,196.81
  6. Step 6: Final answer
    x = 2,862.01

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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.