Home / 1,905.70-2,626.73-1,276.01

Finding the Fourth Proportional to 1,905.70, 2,626.73 and 1,276.01

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Solution

The fourth proportional to 1,905.70, 2,626.73 and 1,276.01 is: 1,758.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,905.70 : 2,626.73 = 1,276.01 : x
  2. Step 2: Convert to fraction form
    1,905.70/2,626.73 = 1,276.01/x
  3. Step 3: Cross multiply
    1,905.70x = 2,626.73 × 1,276.01
  4. Step 4: Simplify right side
    1,905.70x = 3,351,733.75
  5. Step 5: Solve for x
    x = 3,351,733.75/1,905.70
  6. Step 6: Final answer
    x = 1,758.79

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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.