Home / 1,228.70-1,844.90-1,057.23

Finding the Fourth Proportional to 1,228.70, 1,844.90 and 1,057.23

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Solution

The fourth proportional to 1,228.70, 1,844.90 and 1,057.23 is: 1,587.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228.70 : 1,844.90 = 1,057.23 : x
  2. Step 2: Convert to fraction form
    1,228.70/1,844.90 = 1,057.23/x
  3. Step 3: Cross multiply
    1,228.70x = 1,844.90 × 1,057.23
  4. Step 4: Simplify right side
    1,228.70x = 1,950,478.34
  5. Step 5: Solve for x
    x = 1,950,478.34/1,228.70
  6. Step 6: Final answer
    x = 1,587.44

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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.