Home / 2,032.16-2,805.60-1,286.76

Finding the Fourth Proportional to 2,032.16, 2,805.60 and 1,286.76

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Solution

The fourth proportional to 2,032.16, 2,805.60 and 1,286.76 is: 1,776.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,032.16 : 2,805.60 = 1,286.76 : x
  2. Step 2: Convert to fraction form
    2,032.16/2,805.60 = 1,286.76/x
  3. Step 3: Cross multiply
    2,032.16x = 2,805.60 × 1,286.76
  4. Step 4: Simplify right side
    2,032.16x = 3,610,133.49
  5. Step 5: Solve for x
    x = 3,610,133.49/2,032.16
  6. Step 6: Final answer
    x = 1,776.50

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Half scale
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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.