Home / 2,954.56-4,428.78-1,395.40

Finding the Fourth Proportional to 2,954.56, 4,428.78 and 1,395.40

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Solution

The fourth proportional to 2,954.56, 4,428.78 and 1,395.40 is: 2,091.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,954.56 : 4,428.78 = 1,395.40 : x
  2. Step 2: Convert to fraction form
    2,954.56/4,428.78 = 1,395.40/x
  3. Step 3: Cross multiply
    2,954.56x = 4,428.78 × 1,395.40
  4. Step 4: Simplify right side
    2,954.56x = 6,179,919.61
  5. Step 5: Solve for x
    x = 6,179,919.61/2,954.56
  6. Step 6: Final answer
    x = 2,091.65

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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.