Home / 6,071.07-8,378.13-3,680.25

Finding the Fourth Proportional to 6,071.07, 8,378.13 and 3,680.25

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Solution

The fourth proportional to 6,071.07, 8,378.13 and 3,680.25 is: 5,078.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,071.07 : 8,378.13 = 3,680.25 : x
  2. Step 2: Convert to fraction form
    6,071.07/8,378.13 = 3,680.25/x
  3. Step 3: Cross multiply
    6,071.07x = 8,378.13 × 3,680.25
  4. Step 4: Simplify right side
    6,071.07x = 30,833,612.93
  5. Step 5: Solve for x
    x = 30,833,612.93/6,071.07
  6. Step 6: Final answer
    x = 5,078.78

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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.