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Finding the Fourth Proportional to 5,283.24, 7,918.62 and 2,161.32

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Solution

The fourth proportional to 5,283.24, 7,918.62 and 2,161.32 is: 3,239.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,283.24 : 7,918.62 = 2,161.32 : x
  2. Step 2: Convert to fraction form
    5,283.24/7,918.62 = 2,161.32/x
  3. Step 3: Cross multiply
    5,283.24x = 7,918.62 × 2,161.32
  4. Step 4: Simplify right side
    5,283.24x = 17,114,671.78
  5. Step 5: Solve for x
    x = 17,114,671.78/5,283.24
  6. Step 6: Final answer
    x = 3,239.43

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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.