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Finding the Fourth Proportional to 1,895.76, 2,841.39 and 1,431.99

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Solution

The fourth proportional to 1,895.76, 2,841.39 and 1,431.99 is: 2,146.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,895.76 : 2,841.39 = 1,431.99 : x
  2. Step 2: Convert to fraction form
    1,895.76/2,841.39 = 1,431.99/x
  3. Step 3: Cross multiply
    1,895.76x = 2,841.39 × 1,431.99
  4. Step 4: Simplify right side
    1,895.76x = 4,068,842.07
  5. Step 5: Solve for x
    x = 4,068,842.07/1,895.76
  6. Step 6: Final answer
    x = 2,146.29

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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.