Home / 1,264.55-1,745.23-767.18

Finding the Fourth Proportional to 1,264.55, 1,745.23 and 767.18

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Solution

The fourth proportional to 1,264.55, 1,745.23 and 767.18 is: 1,058.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,264.55 : 1,745.23 = 767.18 : x
  2. Step 2: Convert to fraction form
    1,264.55/1,745.23 = 767.18/x
  3. Step 3: Cross multiply
    1,264.55x = 1,745.23 × 767.18
  4. Step 4: Simplify right side
    1,264.55x = 1,338,905.55
  5. Step 5: Solve for x
    x = 1,338,905.55/1,264.55
  6. Step 6: Final answer
    x = 1,058.80

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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.