Home / 3,108.03-4,287.19-1,973.30

Finding the Fourth Proportional to 3,108.03, 4,287.19 and 1,973.30

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Solution

The fourth proportional to 3,108.03, 4,287.19 and 1,973.30 is: 2,721.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,108.03 : 4,287.19 = 1,973.30 : x
  2. Step 2: Convert to fraction form
    3,108.03/4,287.19 = 1,973.30/x
  3. Step 3: Cross multiply
    3,108.03x = 4,287.19 × 1,973.30
  4. Step 4: Simplify right side
    3,108.03x = 8,459,912.03
  5. Step 5: Solve for x
    x = 8,459,912.03/3,108.03
  6. Step 6: Final answer
    x = 2,721.95

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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.