Home / 3,280.35-4,528.20-1,953.80

Finding the Fourth Proportional to 3,280.35, 4,528.20 and 1,953.80

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Solution

The fourth proportional to 3,280.35, 4,528.20 and 1,953.80 is: 2,697.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280.35 : 4,528.20 = 1,953.80 : x
  2. Step 2: Convert to fraction form
    3,280.35/4,528.20 = 1,953.80/x
  3. Step 3: Cross multiply
    3,280.35x = 4,528.20 × 1,953.80
  4. Step 4: Simplify right side
    3,280.35x = 8,847,197.16
  5. Step 5: Solve for x
    x = 8,847,197.16/3,280.35
  6. Step 6: Final answer
    x = 2,697.03

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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.