Home / 3,091.19-4,638.30-1,447.45

Finding the Fourth Proportional to 3,091.19, 4,638.30 and 1,447.45

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Solution

The fourth proportional to 3,091.19, 4,638.30 and 1,447.45 is: 2,171.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,091.19 : 4,638.30 = 1,447.45 : x
  2. Step 2: Convert to fraction form
    3,091.19/4,638.30 = 1,447.45/x
  3. Step 3: Cross multiply
    3,091.19x = 4,638.30 × 1,447.45
  4. Step 4: Simplify right side
    3,091.19x = 6,713,695.74
  5. Step 5: Solve for x
    x = 6,713,695.74/3,091.19
  6. Step 6: Final answer
    x = 2,171.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.