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Finding the Fourth Proportional to 2,907.88, 4,362.06 and 2,760.28

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Solution

The fourth proportional to 2,907.88, 4,362.06 and 2,760.28 is: 4,140.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,907.88 : 4,362.06 = 2,760.28 : x
  2. Step 2: Convert to fraction form
    2,907.88/4,362.06 = 2,760.28/x
  3. Step 3: Cross multiply
    2,907.88x = 4,362.06 × 2,760.28
  4. Step 4: Simplify right side
    2,907.88x = 12,040,506.98
  5. Step 5: Solve for x
    x = 12,040,506.98/2,907.88
  6. Step 6: Final answer
    x = 4,140.65

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1.5x scale

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.