Home / 1,418.89-2,128.44-444.97

Finding the Fourth Proportional to 1,418.89, 2,128.44 and 444.97

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Solution

The fourth proportional to 1,418.89, 2,128.44 and 444.97 is: 667.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,418.89 : 2,128.44 = 444.97 : x
  2. Step 2: Convert to fraction form
    1,418.89/2,128.44 = 444.97/x
  3. Step 3: Cross multiply
    1,418.89x = 2,128.44 × 444.97
  4. Step 4: Simplify right side
    1,418.89x = 947,091.95
  5. Step 5: Solve for x
    x = 947,091.95/1,418.89
  6. Step 6: Final answer
    x = 667.49

Related Problems

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Double scale
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1.5x scale

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.