Home / 3,545.37-4,891.19-2,145.69

Finding the Fourth Proportional to 3,545.37, 4,891.19 and 2,145.69

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Solution

The fourth proportional to 3,545.37, 4,891.19 and 2,145.69 is: 2,960.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,545.37 : 4,891.19 = 2,145.69 : x
  2. Step 2: Convert to fraction form
    3,545.37/4,891.19 = 2,145.69/x
  3. Step 3: Cross multiply
    3,545.37x = 4,891.19 × 2,145.69
  4. Step 4: Simplify right side
    3,545.37x = 10,494,966.74
  5. Step 5: Solve for x
    x = 10,494,966.74/3,545.37
  6. Step 6: Final answer
    x = 2,960.19

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Half scale
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Double scale
Find fourth proportional to 3,546.37, 4,892.56 and 2,146.69
Similar ratio
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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.