Home / 2,178.74-3,006.65-1,184.03

Finding the Fourth Proportional to 2,178.74, 3,006.65 and 1,184.03

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Solution

The fourth proportional to 2,178.74, 3,006.65 and 1,184.03 is: 1,633.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,178.74 : 3,006.65 = 1,184.03 : x
  2. Step 2: Convert to fraction form
    2,178.74/3,006.65 = 1,184.03/x
  3. Step 3: Cross multiply
    2,178.74x = 3,006.65 × 1,184.03
  4. Step 4: Simplify right side
    2,178.74x = 3,559,942.85
  5. Step 5: Solve for x
    x = 3,559,942.85/2,178.74
  6. Step 6: Final answer
    x = 1,633.95

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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.