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Finding the Fourth Proportional to 2,091.06, 3,136.59 and 630.22

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Solution

The fourth proportional to 2,091.06, 3,136.59 and 630.22 is: 945.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,091.06 : 3,136.59 = 630.22 : x
  2. Step 2: Convert to fraction form
    2,091.06/3,136.59 = 630.22/x
  3. Step 3: Cross multiply
    2,091.06x = 3,136.59 × 630.22
  4. Step 4: Simplify right side
    2,091.06x = 1,976,741.75
  5. Step 5: Solve for x
    x = 1,976,741.75/2,091.06
  6. Step 6: Final answer
    x = 945.33

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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.