Home / 2,071.53-3,122.91-1,930.59

Finding the Fourth Proportional to 2,071.53, 3,122.91 and 1,930.59

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Solution

The fourth proportional to 2,071.53, 3,122.91 and 1,930.59 is: 2,910.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,071.53 : 3,122.91 = 1,930.59 : x
  2. Step 2: Convert to fraction form
    2,071.53/3,122.91 = 1,930.59/x
  3. Step 3: Cross multiply
    2,071.53x = 3,122.91 × 1,930.59
  4. Step 4: Simplify right side
    2,071.53x = 6,029,058.82
  5. Step 5: Solve for x
    x = 6,029,058.82/2,071.53
  6. Step 6: Final answer
    x = 2,910.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.