Home / 3,071.93-4,243.79-2,838.65

Finding the Fourth Proportional to 3,071.93, 4,243.79 and 2,838.65

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Solution

The fourth proportional to 3,071.93, 4,243.79 and 2,838.65 is: 3,921.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,071.93 : 4,243.79 = 2,838.65 : x
  2. Step 2: Convert to fraction form
    3,071.93/4,243.79 = 2,838.65/x
  3. Step 3: Cross multiply
    3,071.93x = 4,243.79 × 2,838.65
  4. Step 4: Simplify right side
    3,071.93x = 12,046,620.36
  5. Step 5: Solve for x
    x = 12,046,620.36/3,071.93
  6. Step 6: Final answer
    x = 3,921.52

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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.