Home / 2,907.73-4,012.62-1,581.40

Finding the Fourth Proportional to 2,907.73, 4,012.62 and 1,581.40

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Solution

The fourth proportional to 2,907.73, 4,012.62 and 1,581.40 is: 2,182.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,907.73 : 4,012.62 = 1,581.40 : x
  2. Step 2: Convert to fraction form
    2,907.73/4,012.62 = 1,581.40/x
  3. Step 3: Cross multiply
    2,907.73x = 4,012.62 × 1,581.40
  4. Step 4: Simplify right side
    2,907.73x = 6,345,557.27
  5. Step 5: Solve for x
    x = 6,345,557.27/2,907.73
  6. Step 6: Final answer
    x = 2,182.31

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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.