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Finding the Fourth Proportional to 2,091.07, 3,136.60 and 552.07

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Solution

The fourth proportional to 2,091.07, 3,136.60 and 552.07 is: 828.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,091.07 : 3,136.60 = 552.07 : x
  2. Step 2: Convert to fraction form
    2,091.07/3,136.60 = 552.07/x
  3. Step 3: Cross multiply
    2,091.07x = 3,136.60 × 552.07
  4. Step 4: Simplify right side
    2,091.07x = 1,731,604.32
  5. Step 5: Solve for x
    x = 1,731,604.32/2,091.07
  6. Step 6: Final answer
    x = 828.10

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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.