Home / 7,738.20-10,678.74-4,551.33

Finding the Fourth Proportional to 7,738.20, 10,678.74 and 4,551.33

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Solution

The fourth proportional to 7,738.20, 10,678.74 and 4,551.33 is: 6,280.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,738.20 : 10,678.74 = 4,551.33 : x
  2. Step 2: Convert to fraction form
    7,738.20/10,678.74 = 4,551.33/x
  3. Step 3: Cross multiply
    7,738.20x = 10,678.74 × 4,551.33
  4. Step 4: Simplify right side
    7,738.20x = 48,602,469.72
  5. Step 5: Solve for x
    x = 48,602,469.72/7,738.20
  6. Step 6: Final answer
    x = 6,280.85

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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.