Home / 3,278.39-4,527.38-2,803.55

Finding the Fourth Proportional to 3,278.39, 4,527.38 and 2,803.55

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Solution

The fourth proportional to 3,278.39, 4,527.38 and 2,803.55 is: 3,871.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,278.39 : 4,527.38 = 2,803.55 : x
  2. Step 2: Convert to fraction form
    3,278.39/4,527.38 = 2,803.55/x
  3. Step 3: Cross multiply
    3,278.39x = 4,527.38 × 2,803.55
  4. Step 4: Simplify right side
    3,278.39x = 12,692,720.57
  5. Step 5: Solve for x
    x = 12,692,720.57/3,278.39
  6. Step 6: Final answer
    x = 3,871.64

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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.