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Finding the Fourth Proportional to 2,455.93, 3,390.93 and 1,512.97

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Solution

The fourth proportional to 2,455.93, 3,390.93 and 1,512.97 is: 2,088.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,455.93 : 3,390.93 = 1,512.97 : x
  2. Step 2: Convert to fraction form
    2,455.93/3,390.93 = 1,512.97/x
  3. Step 3: Cross multiply
    2,455.93x = 3,390.93 × 1,512.97
  4. Step 4: Simplify right side
    2,455.93x = 5,130,375.36
  5. Step 5: Solve for x
    x = 5,130,375.36/2,455.93
  6. Step 6: Final answer
    x = 2,088.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.