Home / 1,929.29-2,662.46-1,089.93

Finding the Fourth Proportional to 1,929.29, 2,662.46 and 1,089.93

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Solution

The fourth proportional to 1,929.29, 2,662.46 and 1,089.93 is: 1,504.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,929.29 : 2,662.46 = 1,089.93 : x
  2. Step 2: Convert to fraction form
    1,929.29/2,662.46 = 1,089.93/x
  3. Step 3: Cross multiply
    1,929.29x = 2,662.46 × 1,089.93
  4. Step 4: Simplify right side
    1,929.29x = 2,901,889.58
  5. Step 5: Solve for x
    x = 2,901,889.58/1,929.29
  6. Step 6: Final answer
    x = 1,504.13

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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.