Home / 3,680.84-5,079.55-2,108.94

Finding the Fourth Proportional to 3,680.84, 5,079.55 and 2,108.94

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Solution

The fourth proportional to 3,680.84, 5,079.55 and 2,108.94 is: 2,910.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,680.84 : 5,079.55 = 2,108.94 : x
  2. Step 2: Convert to fraction form
    3,680.84/5,079.55 = 2,108.94/x
  3. Step 3: Cross multiply
    3,680.84x = 5,079.55 × 2,108.94
  4. Step 4: Simplify right side
    3,680.84x = 10,712,466.18
  5. Step 5: Solve for x
    x = 10,712,466.18/3,680.84
  6. Step 6: Final answer
    x = 2,910.33

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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.