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Finding the Fourth Proportional to 5,918.67, 8,876.99 and 2,169.72

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Solution

The fourth proportional to 5,918.67, 8,876.99 and 2,169.72 is: 3,254.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,918.67 : 8,876.99 = 2,169.72 : x
  2. Step 2: Convert to fraction form
    5,918.67/8,876.99 = 2,169.72/x
  3. Step 3: Cross multiply
    5,918.67x = 8,876.99 × 2,169.72
  4. Step 4: Simplify right side
    5,918.67x = 19,260,588.17
  5. Step 5: Solve for x
    x = 19,260,588.17/5,918.67
  6. Step 6: Final answer
    x = 3,254.21

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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.