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Finding the Fourth Proportional to 2,091.09, 3,136.75 and 704.47

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Solution

The fourth proportional to 2,091.09, 3,136.75 and 704.47 is: 1,056.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,091.09 : 3,136.75 = 704.47 : x
  2. Step 2: Convert to fraction form
    2,091.09/3,136.75 = 704.47/x
  3. Step 3: Cross multiply
    2,091.09x = 3,136.75 × 704.47
  4. Step 4: Simplify right side
    2,091.09x = 2,209,746.27
  5. Step 5: Solve for x
    x = 2,209,746.27/2,091.09
  6. Step 6: Final answer
    x = 1,056.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.