Home / 1,929.31-2,882.23-1,230.41

Finding the Fourth Proportional to 1,929.31, 2,882.23 and 1,230.41

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Solution

The fourth proportional to 1,929.31, 2,882.23 and 1,230.41 is: 1,838.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,929.31 : 2,882.23 = 1,230.41 : x
  2. Step 2: Convert to fraction form
    1,929.31/2,882.23 = 1,230.41/x
  3. Step 3: Cross multiply
    1,929.31x = 2,882.23 × 1,230.41
  4. Step 4: Simplify right side
    1,929.31x = 3,546,328.74
  5. Step 5: Solve for x
    x = 3,546,328.74/1,929.31
  6. Step 6: Final answer
    x = 1,838.14

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.