Home / 5,196.66-7,790.55-1,909.18

Finding the Fourth Proportional to 5,196.66, 7,790.55 and 1,909.18

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Solution

The fourth proportional to 5,196.66, 7,790.55 and 1,909.18 is: 2,862.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,196.66 : 7,790.55 = 1,909.18 : x
  2. Step 2: Convert to fraction form
    5,196.66/7,790.55 = 1,909.18/x
  3. Step 3: Cross multiply
    5,196.66x = 7,790.55 × 1,909.18
  4. Step 4: Simplify right side
    5,196.66x = 14,873,562.25
  5. Step 5: Solve for x
    x = 14,873,562.25/5,196.66
  6. Step 6: Final answer
    x = 2,862.14

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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.