Home / 6,920.70-9,550.56-3,776.89

Finding the Fourth Proportional to 6,920.70, 9,550.56 and 3,776.89

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Solution

The fourth proportional to 6,920.70, 9,550.56 and 3,776.89 is: 5,212.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,920.70 : 9,550.56 = 3,776.89 : x
  2. Step 2: Convert to fraction form
    6,920.70/9,550.56 = 3,776.89/x
  3. Step 3: Cross multiply
    6,920.70x = 9,550.56 × 3,776.89
  4. Step 4: Simplify right side
    6,920.70x = 36,071,414.56
  5. Step 5: Solve for x
    x = 36,071,414.56/6,920.70
  6. Step 6: Final answer
    x = 5,212.10

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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.