Home / 3,071.25-4,238.37-1,674

Finding the Fourth Proportional to 3,071.25, 4,238.37 and 1,674

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Solution

The fourth proportional to 3,071.25, 4,238.37 and 1,674 is: 2,310.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,071.25 : 4,238.37 = 1,674 : x
  2. Step 2: Convert to fraction form
    3,071.25/4,238.37 = 1,674/x
  3. Step 3: Cross multiply
    3,071.25x = 4,238.37 × 1,674
  4. Step 4: Simplify right side
    3,071.25x = 7,095,031.38
  5. Step 5: Solve for x
    x = 7,095,031.38/3,071.25
  6. Step 6: Final answer
    x = 2,310.14

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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.