Home / 3,604.38-4,980.78-2,718.60

Finding the Fourth Proportional to 3,604.38, 4,980.78 and 2,718.60

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Solution

The fourth proportional to 3,604.38, 4,980.78 and 2,718.60 is: 3,756.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,604.38 : 4,980.78 = 2,718.60 : x
  2. Step 2: Convert to fraction form
    3,604.38/4,980.78 = 2,718.60/x
  3. Step 3: Cross multiply
    3,604.38x = 4,980.78 × 2,718.60
  4. Step 4: Simplify right side
    3,604.38x = 13,540,748.51
  5. Step 5: Solve for x
    x = 13,540,748.51/3,604.38
  6. Step 6: Final answer
    x = 3,756.75

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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.