Home / 6,121.26-8,445.84-3,603.48

Finding the Fourth Proportional to 6,121.26, 8,445.84 and 3,603.48

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Solution

The fourth proportional to 6,121.26, 8,445.84 and 3,603.48 is: 4,971.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,121.26 : 8,445.84 = 3,603.48 : x
  2. Step 2: Convert to fraction form
    6,121.26/8,445.84 = 3,603.48/x
  3. Step 3: Cross multiply
    6,121.26x = 8,445.84 × 3,603.48
  4. Step 4: Simplify right side
    6,121.26x = 30,434,415.52
  5. Step 5: Solve for x
    x = 30,434,415.52/6,121.26
  6. Step 6: Final answer
    x = 4,971.92

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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.