Home / 2,907.71-4,012.61-1,581.41

Finding the Fourth Proportional to 2,907.71, 4,012.61 and 1,581.41

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Solution

The fourth proportional to 2,907.71, 4,012.61 and 1,581.41 is: 2,182.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,907.71 : 4,012.61 = 1,581.41 : x
  2. Step 2: Convert to fraction form
    2,907.71/4,012.61 = 1,581.41/x
  3. Step 3: Cross multiply
    2,907.71x = 4,012.61 × 1,581.41
  4. Step 4: Simplify right side
    2,907.71x = 6,345,561.52
  5. Step 5: Solve for x
    x = 6,345,561.52/2,907.71
  6. Step 6: Final answer
    x = 2,182.33

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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.