Home / 2,929.62-4,042.88-1,881.68

Finding the Fourth Proportional to 2,929.62, 4,042.88 and 1,881.68

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Solution

The fourth proportional to 2,929.62, 4,042.88 and 1,881.68 is: 2,596.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,929.62 : 4,042.88 = 1,881.68 : x
  2. Step 2: Convert to fraction form
    2,929.62/4,042.88 = 1,881.68/x
  3. Step 3: Cross multiply
    2,929.62x = 4,042.88 × 1,881.68
  4. Step 4: Simplify right side
    2,929.62x = 7,607,406.44
  5. Step 5: Solve for x
    x = 7,607,406.44/2,929.62
  6. Step 6: Final answer
    x = 2,596.72

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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.