Home / 1,976.54-2,727.87-1,277.42

Finding the Fourth Proportional to 1,976.54, 2,727.87 and 1,277.42

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Solution

The fourth proportional to 1,976.54, 2,727.87 and 1,277.42 is: 1,763.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,976.54 : 2,727.87 = 1,277.42 : x
  2. Step 2: Convert to fraction form
    1,976.54/2,727.87 = 1,277.42/x
  3. Step 3: Cross multiply
    1,976.54x = 2,727.87 × 1,277.42
  4. Step 4: Simplify right side
    1,976.54x = 3,484,635.70
  5. Step 5: Solve for x
    x = 3,484,635.70/1,976.54
  6. Step 6: Final answer
    x = 1,763.00

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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.