Home / 2,954.85-4,077.71-1,628.56

Finding the Fourth Proportional to 2,954.85, 4,077.71 and 1,628.56

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Solution

The fourth proportional to 2,954.85, 4,077.71 and 1,628.56 is: 2,247.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,954.85 : 4,077.71 = 1,628.56 : x
  2. Step 2: Convert to fraction form
    2,954.85/4,077.71 = 1,628.56/x
  3. Step 3: Cross multiply
    2,954.85x = 4,077.71 × 1,628.56
  4. Step 4: Simplify right side
    2,954.85x = 6,640,795.40
  5. Step 5: Solve for x
    x = 6,640,795.40/2,954.85
  6. Step 6: Final answer
    x = 2,247.42

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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.