Home / 1,105.22-1,657.58-325.06

Finding the Fourth Proportional to 1,105.22, 1,657.58 and 325.06

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Solution

The fourth proportional to 1,105.22, 1,657.58 and 325.06 is: 487.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,105.22 : 1,657.58 = 325.06 : x
  2. Step 2: Convert to fraction form
    1,105.22/1,657.58 = 325.06/x
  3. Step 3: Cross multiply
    1,105.22x = 1,657.58 × 325.06
  4. Step 4: Simplify right side
    1,105.22x = 538,812.95
  5. Step 5: Solve for x
    x = 538,812.95/1,105.22
  6. Step 6: Final answer
    x = 487.52

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Double scale
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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.