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Finding the Fourth Proportional to 3,397.05, 5,094.88 and 931.68

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Solution

The fourth proportional to 3,397.05, 5,094.88 and 931.68 is: 1,397.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,397.05 : 5,094.88 = 931.68 : x
  2. Step 2: Convert to fraction form
    3,397.05/5,094.88 = 931.68/x
  3. Step 3: Cross multiply
    3,397.05x = 5,094.88 × 931.68
  4. Step 4: Simplify right side
    3,397.05x = 4,746,795.47
  5. Step 5: Solve for x
    x = 4,746,795.47/3,397.05
  6. Step 6: Final answer
    x = 1,397.33

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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.