Home / 5,243.12-7,869.62-1,914.59

Finding the Fourth Proportional to 5,243.12, 7,869.62 and 1,914.59

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Solution

The fourth proportional to 5,243.12, 7,869.62 and 1,914.59 is: 2,873.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,243.12 : 7,869.62 = 1,914.59 : x
  2. Step 2: Convert to fraction form
    5,243.12/7,869.62 = 1,914.59/x
  3. Step 3: Cross multiply
    5,243.12x = 7,869.62 × 1,914.59
  4. Step 4: Simplify right side
    5,243.12x = 15,067,120.22
  5. Step 5: Solve for x
    x = 15,067,120.22/5,243.12
  6. Step 6: Final answer
    x = 2,873.69

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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.