Home / 2,907.99-4,013.01-1,581.75

Finding the Fourth Proportional to 2,907.99, 4,013.01 and 1,581.75

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Solution

The fourth proportional to 2,907.99, 4,013.01 and 1,581.75 is: 2,182.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,907.99 : 4,013.01 = 1,581.75 : x
  2. Step 2: Convert to fraction form
    2,907.99/4,013.01 = 1,581.75/x
  3. Step 3: Cross multiply
    2,907.99x = 4,013.01 × 1,581.75
  4. Step 4: Simplify right side
    2,907.99x = 6,347,578.57
  5. Step 5: Solve for x
    x = 6,347,578.57/2,907.99
  6. Step 6: Final answer
    x = 2,182.81

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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.