Home / 1,242.07-1,863.37-376.45

Finding the Fourth Proportional to 1,242.07, 1,863.37 and 376.45

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Solution

The fourth proportional to 1,242.07, 1,863.37 and 376.45 is: 564.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242.07 : 1,863.37 = 376.45 : x
  2. Step 2: Convert to fraction form
    1,242.07/1,863.37 = 376.45/x
  3. Step 3: Cross multiply
    1,242.07x = 1,863.37 × 376.45
  4. Step 4: Simplify right side
    1,242.07x = 701,461.45
  5. Step 5: Solve for x
    x = 701,461.45/1,242.07
  6. Step 6: Final answer
    x = 564.75

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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.