Home / 5,382.60-8,074.79-1,684.09

Finding the Fourth Proportional to 5,382.60, 8,074.79 and 1,684.09

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Solution

The fourth proportional to 5,382.60, 8,074.79 and 1,684.09 is: 2,526.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,382.60 : 8,074.79 = 1,684.09 : x
  2. Step 2: Convert to fraction form
    5,382.60/8,074.79 = 1,684.09/x
  3. Step 3: Cross multiply
    5,382.60x = 8,074.79 × 1,684.09
  4. Step 4: Simplify right side
    5,382.60x = 13,598,673.09
  5. Step 5: Solve for x
    x = 13,598,673.09/5,382.60
  6. Step 6: Final answer
    x = 2,526.41

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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.