Home / 1,929.34-2,662.58-1,090.08

Finding the Fourth Proportional to 1,929.34, 2,662.58 and 1,090.08

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Solution

The fourth proportional to 1,929.34, 2,662.58 and 1,090.08 is: 1,504.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,929.34 : 2,662.58 = 1,090.08 : x
  2. Step 2: Convert to fraction form
    1,929.34/2,662.58 = 1,090.08/x
  3. Step 3: Cross multiply
    1,929.34x = 2,662.58 × 1,090.08
  4. Step 4: Simplify right side
    1,929.34x = 2,902,427.93
  5. Step 5: Solve for x
    x = 2,902,427.93/1,929.34
  6. Step 6: Final answer
    x = 1,504.36

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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.