Home / 1,930.19-2,663.64-1,090.89

Finding the Fourth Proportional to 1,930.19, 2,663.64 and 1,090.89

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Solution

The fourth proportional to 1,930.19, 2,663.64 and 1,090.89 is: 1,505.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,930.19 : 2,663.64 = 1,090.89 : x
  2. Step 2: Convert to fraction form
    1,930.19/2,663.64 = 1,090.89/x
  3. Step 3: Cross multiply
    1,930.19x = 2,663.64 × 1,090.89
  4. Step 4: Simplify right side
    1,930.19x = 2,905,738.24
  5. Step 5: Solve for x
    x = 2,905,738.24/1,930.19
  6. Step 6: Final answer
    x = 1,505.42

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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.