Home / 3,680.09-5,077.95-2,107.88

Finding the Fourth Proportional to 3,680.09, 5,077.95 and 2,107.88

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Solution

The fourth proportional to 3,680.09, 5,077.95 and 2,107.88 is: 2,908.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,680.09 : 5,077.95 = 2,107.88 : x
  2. Step 2: Convert to fraction form
    3,680.09/5,077.95 = 2,107.88/x
  3. Step 3: Cross multiply
    3,680.09x = 5,077.95 × 2,107.88
  4. Step 4: Simplify right side
    3,680.09x = 10,703,683.86
  5. Step 5: Solve for x
    x = 10,703,683.86/3,680.09
  6. Step 6: Final answer
    x = 2,908.54

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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.