Home / 1,266.18-1,749.01-1,018.43

Finding the Fourth Proportional to 1,266.18, 1,749.01 and 1,018.43

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Solution

The fourth proportional to 1,266.18, 1,749.01 and 1,018.43 is: 1,406.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,266.18 : 1,749.01 = 1,018.43 : x
  2. Step 2: Convert to fraction form
    1,266.18/1,749.01 = 1,018.43/x
  3. Step 3: Cross multiply
    1,266.18x = 1,749.01 × 1,018.43
  4. Step 4: Simplify right side
    1,266.18x = 1,781,241.43
  5. Step 5: Solve for x
    x = 1,781,241.43/1,266.18
  6. Step 6: Final answer
    x = 1,406.79

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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.