Home / 1,976.49-2,964.74-1,399.77

Finding the Fourth Proportional to 1,976.49, 2,964.74 and 1,399.77

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Solution

The fourth proportional to 1,976.49, 2,964.74 and 1,399.77 is: 2,099.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,976.49 : 2,964.74 = 1,399.77 : x
  2. Step 2: Convert to fraction form
    1,976.49/2,964.74 = 1,399.77/x
  3. Step 3: Cross multiply
    1,976.49x = 2,964.74 × 1,399.77
  4. Step 4: Simplify right side
    1,976.49x = 4,149,947.11
  5. Step 5: Solve for x
    x = 4,149,947.11/1,976.49
  6. Step 6: Final answer
    x = 2,099.66

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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.