Home / 1,357.31-2,025.71-1,226.09

Finding the Fourth Proportional to 1,357.31, 2,025.71 and 1,226.09

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Solution

The fourth proportional to 1,357.31, 2,025.71 and 1,226.09 is: 1,829.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,357.31 : 2,025.71 = 1,226.09 : x
  2. Step 2: Convert to fraction form
    1,357.31/2,025.71 = 1,226.09/x
  3. Step 3: Cross multiply
    1,357.31x = 2,025.71 × 1,226.09
  4. Step 4: Simplify right side
    1,357.31x = 2,483,694.91
  5. Step 5: Solve for x
    x = 2,483,694.91/1,357.31
  6. Step 6: Final answer
    x = 1,829.87

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.