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Finding the Fourth Proportional to 3,397.68, 5,096.34 and 1,089

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Solution

The fourth proportional to 3,397.68, 5,096.34 and 1,089 is: 1,633.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,397.68 : 5,096.34 = 1,089 : x
  2. Step 2: Convert to fraction form
    3,397.68/5,096.34 = 1,089/x
  3. Step 3: Cross multiply
    3,397.68x = 5,096.34 × 1,089
  4. Step 4: Simplify right side
    3,397.68x = 5,549,914.26
  5. Step 5: Solve for x
    x = 5,549,914.26/3,397.68
  6. Step 6: Final answer
    x = 1,633.44

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Double scale
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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.