Home / 1,384.35-2,072.85-1,141.95

Finding the Fourth Proportional to 1,384.35, 2,072.85 and 1,141.95

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Solution

The fourth proportional to 1,384.35, 2,072.85 and 1,141.95 is: 1,709.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384.35 : 2,072.85 = 1,141.95 : x
  2. Step 2: Convert to fraction form
    1,384.35/2,072.85 = 1,141.95/x
  3. Step 3: Cross multiply
    1,384.35x = 2,072.85 × 1,141.95
  4. Step 4: Simplify right side
    1,384.35x = 2,367,091.06
  5. Step 5: Solve for x
    x = 2,367,091.06/1,384.35
  6. Step 6: Final answer
    x = 1,709.89

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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.