Home / 1,723.70-2,585.55-1,286.30

Finding the Fourth Proportional to 1,723.70, 2,585.55 and 1,286.30

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Solution

The fourth proportional to 1,723.70, 2,585.55 and 1,286.30 is: 1,929.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,723.70 : 2,585.55 = 1,286.30 : x
  2. Step 2: Convert to fraction form
    1,723.70/2,585.55 = 1,286.30/x
  3. Step 3: Cross multiply
    1,723.70x = 2,585.55 × 1,286.30
  4. Step 4: Simplify right side
    1,723.70x = 3,325,792.97
  5. Step 5: Solve for x
    x = 3,325,792.97/1,723.70
  6. Step 6: Final answer
    x = 1,929.45

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Similar ratio
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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.