Home / 1,270.18-1,905.49-448.93

Finding the Fourth Proportional to 1,270.18, 1,905.49 and 448.93

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Solution

The fourth proportional to 1,270.18, 1,905.49 and 448.93 is: 673.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270.18 : 1,905.49 = 448.93 : x
  2. Step 2: Convert to fraction form
    1,270.18/1,905.49 = 448.93/x
  3. Step 3: Cross multiply
    1,270.18x = 1,905.49 × 448.93
  4. Step 4: Simplify right side
    1,270.18x = 855,431.63
  5. Step 5: Solve for x
    x = 855,431.63/1,270.18
  6. Step 6: Final answer
    x = 673.47

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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.