Home / 3,415.48-4,734.86-3,228.39

Finding the Fourth Proportional to 3,415.48, 4,734.86 and 3,228.39

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Solution

The fourth proportional to 3,415.48, 4,734.86 and 3,228.39 is: 4,475.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,415.48 : 4,734.86 = 3,228.39 : x
  2. Step 2: Convert to fraction form
    3,415.48/4,734.86 = 3,228.39/x
  3. Step 3: Cross multiply
    3,415.48x = 4,734.86 × 3,228.39
  4. Step 4: Simplify right side
    3,415.48x = 15,285,948.55
  5. Step 5: Solve for x
    x = 15,285,948.55/3,415.48
  6. Step 6: Final answer
    x = 4,475.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.