Home / 3,538.81-4,880.20-2,698.03

Finding the Fourth Proportional to 3,538.81, 4,880.20 and 2,698.03

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Solution

The fourth proportional to 3,538.81, 4,880.20 and 2,698.03 is: 3,720.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,538.81 : 4,880.20 = 2,698.03 : x
  2. Step 2: Convert to fraction form
    3,538.81/4,880.20 = 2,698.03/x
  3. Step 3: Cross multiply
    3,538.81x = 4,880.20 × 2,698.03
  4. Step 4: Simplify right side
    3,538.81x = 13,166,926.01
  5. Step 5: Solve for x
    x = 13,166,926.01/3,538.81
  6. Step 6: Final answer
    x = 3,720.72

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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.