Home / 3,245.80-4,868.70-2,900.20

Finding the Fourth Proportional to 3,245.80, 4,868.70 and 2,900.20

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Solution

The fourth proportional to 3,245.80, 4,868.70 and 2,900.20 is: 4,350.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,245.80 : 4,868.70 = 2,900.20 : x
  2. Step 2: Convert to fraction form
    3,245.80/4,868.70 = 2,900.20/x
  3. Step 3: Cross multiply
    3,245.80x = 4,868.70 × 2,900.20
  4. Step 4: Simplify right side
    3,245.80x = 14,120,203.74
  5. Step 5: Solve for x
    x = 14,120,203.74/3,245.80
  6. Step 6: Final answer
    x = 4,350.30

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1.5x scale

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.