Home / 1,353.36-2,029.08-693.94

Finding the Fourth Proportional to 1,353.36, 2,029.08 and 693.94

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Solution

The fourth proportional to 1,353.36, 2,029.08 and 693.94 is: 1,040.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,353.36 : 2,029.08 = 693.94 : x
  2. Step 2: Convert to fraction form
    1,353.36/2,029.08 = 693.94/x
  3. Step 3: Cross multiply
    1,353.36x = 2,029.08 × 693.94
  4. Step 4: Simplify right side
    1,353.36x = 1,408,059.78
  5. Step 5: Solve for x
    x = 1,408,059.78/1,353.36
  6. Step 6: Final answer
    x = 1,040.42

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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.