Home / 1,322.60-1,982.70-552.52

Finding the Fourth Proportional to 1,322.60, 1,982.70 and 552.52

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Solution

The fourth proportional to 1,322.60, 1,982.70 and 552.52 is: 828.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,322.60 : 1,982.70 = 552.52 : x
  2. Step 2: Convert to fraction form
    1,322.60/1,982.70 = 552.52/x
  3. Step 3: Cross multiply
    1,322.60x = 1,982.70 × 552.52
  4. Step 4: Simplify right side
    1,322.60x = 1,095,481.40
  5. Step 5: Solve for x
    x = 1,095,481.40/1,322.60
  6. Step 6: Final answer
    x = 828.28

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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.