Home / 3,355.86-5,033.88-1,275.60

Finding the Fourth Proportional to 3,355.86, 5,033.88 and 1,275.60

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Solution

The fourth proportional to 3,355.86, 5,033.88 and 1,275.60 is: 1,913.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,355.86 : 5,033.88 = 1,275.60 : x
  2. Step 2: Convert to fraction form
    3,355.86/5,033.88 = 1,275.60/x
  3. Step 3: Cross multiply
    3,355.86x = 5,033.88 × 1,275.60
  4. Step 4: Simplify right side
    3,355.86x = 6,421,217.33
  5. Step 5: Solve for x
    x = 6,421,217.33/3,355.86
  6. Step 6: Final answer
    x = 1,913.43

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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.