Home / 4,914.70-6,770.75-3,420.05

Finding the Fourth Proportional to 4,914.70, 6,770.75 and 3,420.05

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Solution

The fourth proportional to 4,914.70, 6,770.75 and 3,420.05 is: 4,711.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,914.70 : 6,770.75 = 3,420.05 : x
  2. Step 2: Convert to fraction form
    4,914.70/6,770.75 = 3,420.05/x
  3. Step 3: Cross multiply
    4,914.70x = 6,770.75 × 3,420.05
  4. Step 4: Simplify right side
    4,914.70x = 23,156,303.54
  5. Step 5: Solve for x
    x = 23,156,303.54/4,914.70
  6. Step 6: Final answer
    x = 4,711.64

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1.5x scale

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.