Home / 4,119.57-5,685-2,351.73

Finding the Fourth Proportional to 4,119.57, 5,685 and 2,351.73

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Solution

The fourth proportional to 4,119.57, 5,685 and 2,351.73 is: 3,245.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,119.57 : 5,685 = 2,351.73 : x
  2. Step 2: Convert to fraction form
    4,119.57/5,685 = 2,351.73/x
  3. Step 3: Cross multiply
    4,119.57x = 5,685 × 2,351.73
  4. Step 4: Simplify right side
    4,119.57x = 13,369,585.05
  5. Step 5: Solve for x
    x = 13,369,585.05/4,119.57
  6. Step 6: Final answer
    x = 3,245.38

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Half scale
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Double scale
Find fourth proportional to 4,120.57, 5,686.38 and 2,352.73
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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.