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Finding the Fourth Proportional to 2,097.09, 3,145.23 and 711.18

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Solution

The fourth proportional to 2,097.09, 3,145.23 and 711.18 is: 1,066.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,097.09 : 3,145.23 = 711.18 : x
  2. Step 2: Convert to fraction form
    2,097.09/3,145.23 = 711.18/x
  3. Step 3: Cross multiply
    2,097.09x = 3,145.23 × 711.18
  4. Step 4: Simplify right side
    2,097.09x = 2,236,824.67
  5. Step 5: Solve for x
    x = 2,236,824.67/2,097.09
  6. Step 6: Final answer
    x = 1,066.63

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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.