Home / 4,839.15-6,678.78-2,715.54

Finding the Fourth Proportional to 4,839.15, 6,678.78 and 2,715.54

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Solution

The fourth proportional to 4,839.15, 6,678.78 and 2,715.54 is: 3,747.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,839.15 : 6,678.78 = 2,715.54 : x
  2. Step 2: Convert to fraction form
    4,839.15/6,678.78 = 2,715.54/x
  3. Step 3: Cross multiply
    4,839.15x = 6,678.78 × 2,715.54
  4. Step 4: Simplify right side
    4,839.15x = 18,136,460.85
  5. Step 5: Solve for x
    x = 18,136,460.85/4,839.15
  6. Step 6: Final answer
    x = 3,747.86

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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.