Home / 2,013.84-2,779.11-1,217.19

Finding the Fourth Proportional to 2,013.84, 2,779.11 and 1,217.19

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Solution

The fourth proportional to 2,013.84, 2,779.11 and 1,217.19 is: 1,679.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,013.84 : 2,779.11 = 1,217.19 : x
  2. Step 2: Convert to fraction form
    2,013.84/2,779.11 = 1,217.19/x
  3. Step 3: Cross multiply
    2,013.84x = 2,779.11 × 1,217.19
  4. Step 4: Simplify right side
    2,013.84x = 3,382,704.90
  5. Step 5: Solve for x
    x = 3,382,704.90/2,013.84
  6. Step 6: Final answer
    x = 1,679.73

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Half scale
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Double 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.