Home / 4,085.21-6,127.88-1,163.58

Finding the Fourth Proportional to 4,085.21, 6,127.88 and 1,163.58

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Solution

The fourth proportional to 4,085.21, 6,127.88 and 1,163.58 is: 1,745.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,085.21 : 6,127.88 = 1,163.58 : x
  2. Step 2: Convert to fraction form
    4,085.21/6,127.88 = 1,163.58/x
  3. Step 3: Cross multiply
    4,085.21x = 6,127.88 × 1,163.58
  4. Step 4: Simplify right side
    4,085.21x = 7,130,272.79
  5. Step 5: Solve for x
    x = 7,130,272.79/4,085.21
  6. Step 6: Final answer
    x = 1,745.39

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1.5x scale

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.