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Finding the Fourth Proportional to 1,393.92, 1,924.32 and 952

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Solution

The fourth proportional to 1,393.92, 1,924.32 and 952 is: 1,314.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,393.92 : 1,924.32 = 952 : x
  2. Step 2: Convert to fraction form
    1,393.92/1,924.32 = 952/x
  3. Step 3: Cross multiply
    1,393.92x = 1,924.32 × 952
  4. Step 4: Simplify right side
    1,393.92x = 1,831,952.64
  5. Step 5: Solve for x
    x = 1,831,952.64/1,393.92
  6. Step 6: Final answer
    x = 1,314.25

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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.