Home / 3,421.06-4,740.90-3,355.44

Finding the Fourth Proportional to 3,421.06, 4,740.90 and 3,355.44

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Solution

The fourth proportional to 3,421.06, 4,740.90 and 3,355.44 is: 4,649.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,421.06 : 4,740.90 = 3,355.44 : x
  2. Step 2: Convert to fraction form
    3,421.06/4,740.90 = 3,355.44/x
  3. Step 3: Cross multiply
    3,421.06x = 4,740.90 × 3,355.44
  4. Step 4: Simplify right side
    3,421.06x = 15,907,805.50
  5. Step 5: Solve for x
    x = 15,907,805.50/3,421.06
  6. Step 6: Final answer
    x = 4,649.96

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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.