Home / 1,265.11-1,745.37-934.33

Finding the Fourth Proportional to 1,265.11, 1,745.37 and 934.33

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Solution

The fourth proportional to 1,265.11, 1,745.37 and 934.33 is: 1,289.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,265.11 : 1,745.37 = 934.33 : x
  2. Step 2: Convert to fraction form
    1,265.11/1,745.37 = 934.33/x
  3. Step 3: Cross multiply
    1,265.11x = 1,745.37 × 934.33
  4. Step 4: Simplify right side
    1,265.11x = 1,630,751.55
  5. Step 5: Solve for x
    x = 1,630,751.55/1,265.11
  6. Step 6: Final answer
    x = 1,289.02

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1.5x scale

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.