Home / 1,370.14-2,054.68-445.48

Finding the Fourth Proportional to 1,370.14, 2,054.68 and 445.48

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Solution

The fourth proportional to 1,370.14, 2,054.68 and 445.48 is: 668.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,370.14 : 2,054.68 = 445.48 : x
  2. Step 2: Convert to fraction form
    1,370.14/2,054.68 = 445.48/x
  3. Step 3: Cross multiply
    1,370.14x = 2,054.68 × 445.48
  4. Step 4: Simplify right side
    1,370.14x = 915,318.85
  5. Step 5: Solve for x
    x = 915,318.85/1,370.14
  6. Step 6: Final answer
    x = 668.05

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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.