Home / 3,500.82-4,830.85-1,928.92

Finding the Fourth Proportional to 3,500.82, 4,830.85 and 1,928.92

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Solution

The fourth proportional to 3,500.82, 4,830.85 and 1,928.92 is: 2,661.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,500.82 : 4,830.85 = 1,928.92 : x
  2. Step 2: Convert to fraction form
    3,500.82/4,830.85 = 1,928.92/x
  3. Step 3: Cross multiply
    3,500.82x = 4,830.85 × 1,928.92
  4. Step 4: Simplify right side
    3,500.82x = 9,318,313.52
  5. Step 5: Solve for x
    x = 9,318,313.52/3,500.82
  6. Step 6: Final answer
    x = 2,661.75

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Half scale
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Double scale
Find fourth proportional to 3,501.82, 4,832.23 and 1,929.92
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.