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Finding the Fourth Proportional to 1,519.34, 2,096.68 and 889.99

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Solution

The fourth proportional to 1,519.34, 2,096.68 and 889.99 is: 1,228.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,519.34 : 2,096.68 = 889.99 : x
  2. Step 2: Convert to fraction form
    1,519.34/2,096.68 = 889.99/x
  3. Step 3: Cross multiply
    1,519.34x = 2,096.68 × 889.99
  4. Step 4: Simplify right side
    1,519.34x = 1,866,013.75
  5. Step 5: Solve for x
    x = 1,866,013.75/1,519.34
  6. Step 6: Final answer
    x = 1,228.17

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1.5x scale

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.