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Finding the Fourth Proportional to 5,094.93, 7,640.81 and 1,808.97

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Solution

The fourth proportional to 5,094.93, 7,640.81 and 1,808.97 is: 2,712.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,094.93 : 7,640.81 = 1,808.97 : x
  2. Step 2: Convert to fraction form
    5,094.93/7,640.81 = 1,808.97/x
  3. Step 3: Cross multiply
    5,094.93x = 7,640.81 × 1,808.97
  4. Step 4: Simplify right side
    5,094.93x = 13,821,987.02
  5. Step 5: Solve for x
    x = 13,821,987.02/5,094.93
  6. Step 6: Final answer
    x = 2,712.89

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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.