Home / 3,308.78-4,566.12-1,911.53

Finding the Fourth Proportional to 3,308.78, 4,566.12 and 1,911.53

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Solution

The fourth proportional to 3,308.78, 4,566.12 and 1,911.53 is: 2,637.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,308.78 : 4,566.12 = 1,911.53 : x
  2. Step 2: Convert to fraction form
    3,308.78/4,566.12 = 1,911.53/x
  3. Step 3: Cross multiply
    3,308.78x = 4,566.12 × 1,911.53
  4. Step 4: Simplify right side
    3,308.78x = 8,728,275.36
  5. Step 5: Solve for x
    x = 8,728,275.36/3,308.78
  6. Step 6: Final answer
    x = 2,637.91

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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.