Home / 2,382.90-3,286.94-1,575.35

Finding the Fourth Proportional to 2,382.90, 3,286.94 and 1,575.35

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Solution

The fourth proportional to 2,382.90, 3,286.94 and 1,575.35 is: 2,173.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,382.90 : 3,286.94 = 1,575.35 : x
  2. Step 2: Convert to fraction form
    2,382.90/3,286.94 = 1,575.35/x
  3. Step 3: Cross multiply
    2,382.90x = 3,286.94 × 1,575.35
  4. Step 4: Simplify right side
    2,382.90x = 5,178,080.93
  5. Step 5: Solve for x
    x = 5,178,080.93/2,382.90
  6. Step 6: Final answer
    x = 2,173.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.