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Finding the Fourth Proportional to 1,090.06, 1,627.37 and 926.08

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Solution

The fourth proportional to 1,090.06, 1,627.37 and 926.08 is: 1,382.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,090.06 : 1,627.37 = 926.08 : x
  2. Step 2: Convert to fraction form
    1,090.06/1,627.37 = 926.08/x
  3. Step 3: Cross multiply
    1,090.06x = 1,627.37 × 926.08
  4. Step 4: Simplify right side
    1,090.06x = 1,507,074.81
  5. Step 5: Solve for x
    x = 1,507,074.81/1,090.06
  6. Step 6: Final answer
    x = 1,382.56

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.