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Finding the Fourth Proportional to 1,661.51, 2,504.87 and 1,661.51

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Solution

The fourth proportional to 1,661.51, 2,504.87 and 1,661.51 is: 2,504.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,661.51 : 2,504.87 = 1,661.51 : x
  2. Step 2: Convert to fraction form
    1,661.51/2,504.87 = 1,661.51/x
  3. Step 3: Cross multiply
    1,661.51x = 2,504.87 × 1,661.51
  4. Step 4: Simplify right side
    1,661.51x = 4,161,880.08
  5. Step 5: Solve for x
    x = 4,161,880.08/1,661.51
  6. Step 6: Final answer
    x = 2,504.87

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.