Home / 2,411.78-3,326.67-1,913.63

Finding the Fourth Proportional to 2,411.78, 3,326.67 and 1,913.63

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Solution

The fourth proportional to 2,411.78, 3,326.67 and 1,913.63 is: 2,639.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,411.78 : 3,326.67 = 1,913.63 : x
  2. Step 2: Convert to fraction form
    2,411.78/3,326.67 = 1,913.63/x
  3. Step 3: Cross multiply
    2,411.78x = 3,326.67 × 1,913.63
  4. Step 4: Simplify right side
    2,411.78x = 6,365,998.88
  5. Step 5: Solve for x
    x = 6,365,998.88/2,411.78
  6. Step 6: Final answer
    x = 2,639.55

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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.