Home / 3,699.93-5,106.05-2,128.02

Finding the Fourth Proportional to 3,699.93, 5,106.05 and 2,128.02

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Solution

The fourth proportional to 3,699.93, 5,106.05 and 2,128.02 is: 2,936.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,699.93 : 5,106.05 = 2,128.02 : x
  2. Step 2: Convert to fraction form
    3,699.93/5,106.05 = 2,128.02/x
  3. Step 3: Cross multiply
    3,699.93x = 5,106.05 × 2,128.02
  4. Step 4: Simplify right side
    3,699.93x = 10,865,776.52
  5. Step 5: Solve for x
    x = 10,865,776.52/3,699.93
  6. Step 6: Final answer
    x = 2,936.75

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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.