Home / 2,157.66-2,976.75-1,273.14

Finding the Fourth Proportional to 2,157.66, 2,976.75 and 1,273.14

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Solution

The fourth proportional to 2,157.66, 2,976.75 and 1,273.14 is: 1,756.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,157.66 : 2,976.75 = 1,273.14 : x
  2. Step 2: Convert to fraction form
    2,157.66/2,976.75 = 1,273.14/x
  3. Step 3: Cross multiply
    2,157.66x = 2,976.75 × 1,273.14
  4. Step 4: Simplify right side
    2,157.66x = 3,789,819.50
  5. Step 5: Solve for x
    x = 3,789,819.50/2,157.66
  6. Step 6: Final answer
    x = 1,756.45

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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.