Home / 1,929.49-2,662.64-1,090.22

Finding the Fourth Proportional to 1,929.49, 2,662.64 and 1,090.22

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Solution

The fourth proportional to 1,929.49, 2,662.64 and 1,090.22 is: 1,504.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,929.49 : 2,662.64 = 1,090.22 : x
  2. Step 2: Convert to fraction form
    1,929.49/2,662.64 = 1,090.22/x
  3. Step 3: Cross multiply
    1,929.49x = 2,662.64 × 1,090.22
  4. Step 4: Simplify right side
    1,929.49x = 2,902,863.38
  5. Step 5: Solve for x
    x = 2,902,863.38/1,929.49
  6. Step 6: Final answer
    x = 1,504.47

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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.