Home / 6,071.20-8,378.26-3,418.55

Finding the Fourth Proportional to 6,071.20, 8,378.26 and 3,418.55

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Solution

The fourth proportional to 6,071.20, 8,378.26 and 3,418.55 is: 4,717.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,071.20 : 8,378.26 = 3,418.55 : x
  2. Step 2: Convert to fraction form
    6,071.20/8,378.26 = 3,418.55/x
  3. Step 3: Cross multiply
    6,071.20x = 8,378.26 × 3,418.55
  4. Step 4: Simplify right side
    6,071.20x = 28,641,538.45
  5. Step 5: Solve for x
    x = 28,641,538.45/6,071.20
  6. Step 6: Final answer
    x = 4,717.61

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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.