Home / 3,681.84-5,080.93-2,109.94

Finding the Fourth Proportional to 3,681.84, 5,080.93 and 2,109.94

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Solution

The fourth proportional to 3,681.84, 5,080.93 and 2,109.94 is: 2,911.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,681.84 : 5,080.93 = 2,109.94 : x
  2. Step 2: Convert to fraction form
    3,681.84/5,080.93 = 2,109.94/x
  3. Step 3: Cross multiply
    3,681.84x = 5,080.93 × 2,109.94
  4. Step 4: Simplify right side
    3,681.84x = 10,720,457.44
  5. Step 5: Solve for x
    x = 10,720,457.44/3,681.84
  6. Step 6: Final answer
    x = 2,911.71

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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.