Home / 1,926.70-2,889.33-1,276.54

Finding the Fourth Proportional to 1,926.70, 2,889.33 and 1,276.54

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Solution

The fourth proportional to 1,926.70, 2,889.33 and 1,276.54 is: 1,914.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,926.70 : 2,889.33 = 1,276.54 : x
  2. Step 2: Convert to fraction form
    1,926.70/2,889.33 = 1,276.54/x
  3. Step 3: Cross multiply
    1,926.70x = 2,889.33 × 1,276.54
  4. Step 4: Simplify right side
    1,926.70x = 3,688,345.32
  5. Step 5: Solve for x
    x = 3,688,345.32/1,926.70
  6. Step 6: Final answer
    x = 1,914.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.