Home / 1,371.12-1,904.89-1,354.71

Finding the Fourth Proportional to 1,371.12, 1,904.89 and 1,354.71

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Solution

The fourth proportional to 1,371.12, 1,904.89 and 1,354.71 is: 1,882.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,371.12 : 1,904.89 = 1,354.71 : x
  2. Step 2: Convert to fraction form
    1,371.12/1,904.89 = 1,354.71/x
  3. Step 3: Cross multiply
    1,371.12x = 1,904.89 × 1,354.71
  4. Step 4: Simplify right side
    1,371.12x = 2,580,573.53
  5. Step 5: Solve for x
    x = 2,580,573.53/1,371.12
  6. Step 6: Final answer
    x = 1,882.09

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These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.