Home / 2,907.70-4,012.65-1,581.43

Finding the Fourth Proportional to 2,907.70, 4,012.65 and 1,581.43

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Solution

The fourth proportional to 2,907.70, 4,012.65 and 1,581.43 is: 2,182.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,907.70 : 4,012.65 = 1,581.43 : x
  2. Step 2: Convert to fraction form
    2,907.70/4,012.65 = 1,581.43/x
  3. Step 3: Cross multiply
    2,907.70x = 4,012.65 × 1,581.43
  4. Step 4: Simplify right side
    2,907.70x = 6,345,725.09
  5. Step 5: Solve for x
    x = 6,345,725.09/2,907.70
  6. Step 6: Final answer
    x = 2,182.39

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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.