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Finding the Fourth Proportional to 3,522, 5,283.54 and 2,555.40

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Solution

The fourth proportional to 3,522, 5,283.54 and 2,555.40 is: 3,833.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,522 : 5,283.54 = 2,555.40 : x
  2. Step 2: Convert to fraction form
    3,522/5,283.54 = 2,555.40/x
  3. Step 3: Cross multiply
    3,522x = 5,283.54 × 2,555.40
  4. Step 4: Simplify right side
    3,522x = 13,501,558.12
  5. Step 5: Solve for x
    x = 13,501,558.12/3,522
  6. Step 6: Final answer
    x = 3,833.49

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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.