Home / 1,976.94-2,953.41-1,277.91

Finding the Fourth Proportional to 1,976.94, 2,953.41 and 1,277.91

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Solution

The fourth proportional to 1,976.94, 2,953.41 and 1,277.91 is: 1,909.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,976.94 : 2,953.41 = 1,277.91 : x
  2. Step 2: Convert to fraction form
    1,976.94/2,953.41 = 1,277.91/x
  3. Step 3: Cross multiply
    1,976.94x = 2,953.41 × 1,277.91
  4. Step 4: Simplify right side
    1,976.94x = 3,774,192.17
  5. Step 5: Solve for x
    x = 3,774,192.17/1,976.94
  6. Step 6: Final answer
    x = 1,909.11

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.