Home / 1,382.76-2,070.09-1,371.83

Finding the Fourth Proportional to 1,382.76, 2,070.09 and 1,371.83

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Solution

The fourth proportional to 1,382.76, 2,070.09 and 1,371.83 is: 2,053.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,382.76 : 2,070.09 = 1,371.83 : x
  2. Step 2: Convert to fraction form
    1,382.76/2,070.09 = 1,371.83/x
  3. Step 3: Cross multiply
    1,382.76x = 2,070.09 × 1,371.83
  4. Step 4: Simplify right side
    1,382.76x = 2,839,801.21
  5. Step 5: Solve for x
    x = 2,839,801.21/1,382.76
  6. Step 6: Final answer
    x = 2,053.72

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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.