Home / 5,382.09-8,074.26-1,871.82

Finding the Fourth Proportional to 5,382.09, 8,074.26 and 1,871.82

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Solution

The fourth proportional to 5,382.09, 8,074.26 and 1,871.82 is: 2,808.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,382.09 : 8,074.26 = 1,871.82 : x
  2. Step 2: Convert to fraction form
    5,382.09/8,074.26 = 1,871.82/x
  3. Step 3: Cross multiply
    5,382.09x = 8,074.26 × 1,871.82
  4. Step 4: Simplify right side
    5,382.09x = 15,113,561.35
  5. Step 5: Solve for x
    x = 15,113,561.35/5,382.09
  6. Step 6: Final answer
    x = 2,808.12

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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.