Home / 1,346.37-2,020.64-697.29

Finding the Fourth Proportional to 1,346.37, 2,020.64 and 697.29

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Solution

The fourth proportional to 1,346.37, 2,020.64 and 697.29 is: 1,046.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,346.37 : 2,020.64 = 697.29 : x
  2. Step 2: Convert to fraction form
    1,346.37/2,020.64 = 697.29/x
  3. Step 3: Cross multiply
    1,346.37x = 2,020.64 × 697.29
  4. Step 4: Simplify right side
    1,346.37x = 1,408,968.58
  5. Step 5: Solve for x
    x = 1,408,968.58/1,346.37
  6. Step 6: Final answer
    x = 1,046.49

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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.