Home / 3,280.50-4,527.09-2,101.80

Finding the Fourth Proportional to 3,280.50, 4,527.09 and 2,101.80

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Solution

The fourth proportional to 3,280.50, 4,527.09 and 2,101.80 is: 2,900.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280.50 : 4,527.09 = 2,101.80 : x
  2. Step 2: Convert to fraction form
    3,280.50/4,527.09 = 2,101.80/x
  3. Step 3: Cross multiply
    3,280.50x = 4,527.09 × 2,101.80
  4. Step 4: Simplify right side
    3,280.50x = 9,515,029.27
  5. Step 5: Solve for x
    x = 9,515,029.27/3,280.50
  6. Step 6: Final answer
    x = 2,900.48

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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.