Home / 6,071.78-8,378.45-3,419.13

Finding the Fourth Proportional to 6,071.78, 8,378.45 and 3,419.13

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Solution

The fourth proportional to 6,071.78, 8,378.45 and 3,419.13 is: 4,718.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,071.78 : 8,378.45 = 3,419.13 : x
  2. Step 2: Convert to fraction form
    6,071.78/8,378.45 = 3,419.13/x
  3. Step 3: Cross multiply
    6,071.78x = 8,378.45 × 3,419.13
  4. Step 4: Simplify right side
    6,071.78x = 28,646,992.65
  5. Step 5: Solve for x
    x = 28,646,992.65/6,071.78
  6. Step 6: Final answer
    x = 4,718.06

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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.