Home / 4,120.13-6,185.53-3,538.89

Finding the Fourth Proportional to 4,120.13, 6,185.53 and 3,538.89

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Solution

The fourth proportional to 4,120.13, 6,185.53 and 3,538.89 is: 5,312.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,120.13 : 6,185.53 = 3,538.89 : x
  2. Step 2: Convert to fraction form
    4,120.13/6,185.53 = 3,538.89/x
  3. Step 3: Cross multiply
    4,120.13x = 6,185.53 × 3,538.89
  4. Step 4: Simplify right side
    4,120.13x = 21,889,914.69
  5. Step 5: Solve for x
    x = 21,889,914.69/4,120.13
  6. Step 6: Final answer
    x = 5,312.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.