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Finding the Fourth Proportional to 5,902.80, 8,857.40 and 2,616.40

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Solution

The fourth proportional to 5,902.80, 8,857.40 and 2,616.40 is: 3,926.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,902.80 : 8,857.40 = 2,616.40 : x
  2. Step 2: Convert to fraction form
    5,902.80/8,857.40 = 2,616.40/x
  3. Step 3: Cross multiply
    5,902.80x = 8,857.40 × 2,616.40
  4. Step 4: Simplify right side
    5,902.80x = 23,174,501.36
  5. Step 5: Solve for x
    x = 23,174,501.36/5,902.80
  6. Step 6: Final answer
    x = 3,926.02

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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.