Home / 2,289.62-3,159.54-1,294.84

Finding the Fourth Proportional to 2,289.62, 3,159.54 and 1,294.84

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Solution

The fourth proportional to 2,289.62, 3,159.54 and 1,294.84 is: 1,786.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,289.62 : 3,159.54 = 1,294.84 : x
  2. Step 2: Convert to fraction form
    2,289.62/3,159.54 = 1,294.84/x
  3. Step 3: Cross multiply
    2,289.62x = 3,159.54 × 1,294.84
  4. Step 4: Simplify right side
    2,289.62x = 4,091,082.98
  5. Step 5: Solve for x
    x = 4,091,082.98/2,289.62
  6. Step 6: Final answer
    x = 1,786.80

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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.