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Finding the Fourth Proportional to 5,918.84, 8,911.08 and 5,229.44

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Solution

The fourth proportional to 5,918.84, 8,911.08 and 5,229.44 is: 7,873.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,918.84 : 8,911.08 = 5,229.44 : x
  2. Step 2: Convert to fraction form
    5,918.84/8,911.08 = 5,229.44/x
  3. Step 3: Cross multiply
    5,918.84x = 8,911.08 × 5,229.44
  4. Step 4: Simplify right side
    5,918.84x = 46,599,958.20
  5. Step 5: Solve for x
    x = 46,599,958.20/5,918.84
  6. Step 6: Final answer
    x = 7,873.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.