Home / 1,386.44-1,908.66-1,202.48

Finding the Fourth Proportional to 1,386.44, 1,908.66 and 1,202.48

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Solution

The fourth proportional to 1,386.44, 1,908.66 and 1,202.48 is: 1,655.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386.44 : 1,908.66 = 1,202.48 : x
  2. Step 2: Convert to fraction form
    1,386.44/1,908.66 = 1,202.48/x
  3. Step 3: Cross multiply
    1,386.44x = 1,908.66 × 1,202.48
  4. Step 4: Simplify right side
    1,386.44x = 2,295,125.48
  5. Step 5: Solve for x
    x = 2,295,125.48/1,386.44
  6. Step 6: Final answer
    x = 1,655.41

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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.