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Finding the Fourth Proportional to 1,344.54, 1,853.91 and 1,064.22

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Solution

The fourth proportional to 1,344.54, 1,853.91 and 1,064.22 is: 1,467.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,344.54 : 1,853.91 = 1,064.22 : x
  2. Step 2: Convert to fraction form
    1,344.54/1,853.91 = 1,064.22/x
  3. Step 3: Cross multiply
    1,344.54x = 1,853.91 × 1,064.22
  4. Step 4: Simplify right side
    1,344.54x = 1,972,968.10
  5. Step 5: Solve for x
    x = 1,972,968.10/1,344.54
  6. Step 6: Final answer
    x = 1,467.39

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.