Home / 2,907.82-4,357.38-2,391.40

Finding the Fourth Proportional to 2,907.82, 4,357.38 and 2,391.40

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Solution

The fourth proportional to 2,907.82, 4,357.38 and 2,391.40 is: 3,583.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,907.82 : 4,357.38 = 2,391.40 : x
  2. Step 2: Convert to fraction form
    2,907.82/4,357.38 = 2,391.40/x
  3. Step 3: Cross multiply
    2,907.82x = 4,357.38 × 2,391.40
  4. Step 4: Simplify right side
    2,907.82x = 10,420,238.53
  5. Step 5: Solve for x
    x = 10,420,238.53/2,907.82
  6. Step 6: Final answer
    x = 3,583.52

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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.