Home / 6,071.36-8,378.16-3,418.88

Finding the Fourth Proportional to 6,071.36, 8,378.16 and 3,418.88

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Solution

The fourth proportional to 6,071.36, 8,378.16 and 3,418.88 is: 4,717.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,071.36 : 8,378.16 = 3,418.88 : x
  2. Step 2: Convert to fraction form
    6,071.36/8,378.16 = 3,418.88/x
  3. Step 3: Cross multiply
    6,071.36x = 8,378.16 × 3,418.88
  4. Step 4: Simplify right side
    6,071.36x = 28,643,923.66
  5. Step 5: Solve for x
    x = 28,643,923.66/6,071.36
  6. Step 6: Final answer
    x = 4,717.88

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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.