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Finding the Fourth Proportional to 3,606.57, 5,400.08 and 1,871.55

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Solution

The fourth proportional to 3,606.57, 5,400.08 and 1,871.55 is: 2,802.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,606.57 : 5,400.08 = 1,871.55 : x
  2. Step 2: Convert to fraction form
    3,606.57/5,400.08 = 1,871.55/x
  3. Step 3: Cross multiply
    3,606.57x = 5,400.08 × 1,871.55
  4. Step 4: Simplify right side
    3,606.57x = 10,106,496.93
  5. Step 5: Solve for x
    x = 10,106,496.93/3,606.57
  6. Step 6: Final answer
    x = 2,802.25

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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.