Home / 3,411.34-5,114.28-1,929.65

Finding the Fourth Proportional to 3,411.34, 5,114.28 and 1,929.65

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Solution

The fourth proportional to 3,411.34, 5,114.28 and 1,929.65 is: 2,892.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,411.34 : 5,114.28 = 1,929.65 : x
  2. Step 2: Convert to fraction form
    3,411.34/5,114.28 = 1,929.65/x
  3. Step 3: Cross multiply
    3,411.34x = 5,114.28 × 1,929.65
  4. Step 4: Simplify right side
    3,411.34x = 9,868,752.07
  5. Step 5: Solve for x
    x = 9,868,752.07/3,411.34
  6. Step 6: Final answer
    x = 2,892.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.