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Finding the Fourth Proportional to 2,907.64, 4,012.48 and 1,712.75

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Solution

The fourth proportional to 2,907.64, 4,012.48 and 1,712.75 is: 2,363.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,907.64 : 4,012.48 = 1,712.75 : x
  2. Step 2: Convert to fraction form
    2,907.64/4,012.48 = 1,712.75/x
  3. Step 3: Cross multiply
    2,907.64x = 4,012.48 × 1,712.75
  4. Step 4: Simplify right side
    2,907.64x = 6,872,375.12
  5. Step 5: Solve for x
    x = 6,872,375.12/2,907.64
  6. Step 6: Final answer
    x = 2,363.56

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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.