Home / 1,929.93-2,663.31-1,090.81

Finding the Fourth Proportional to 1,929.93, 2,663.31 and 1,090.81

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Solution

The fourth proportional to 1,929.93, 2,663.31 and 1,090.81 is: 1,505.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,929.93 : 2,663.31 = 1,090.81 : x
  2. Step 2: Convert to fraction form
    1,929.93/2,663.31 = 1,090.81/x
  3. Step 3: Cross multiply
    1,929.93x = 2,663.31 × 1,090.81
  4. Step 4: Simplify right side
    1,929.93x = 2,905,165.18
  5. Step 5: Solve for x
    x = 2,905,165.18/1,929.93
  6. Step 6: Final answer
    x = 1,505.32

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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.