Home / 4,916.91-6,785.42-2,678.79

Finding the Fourth Proportional to 4,916.91, 6,785.42 and 2,678.79

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Solution

The fourth proportional to 4,916.91, 6,785.42 and 2,678.79 is: 3,696.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,916.91 : 6,785.42 = 2,678.79 : x
  2. Step 2: Convert to fraction form
    4,916.91/6,785.42 = 2,678.79/x
  3. Step 3: Cross multiply
    4,916.91x = 6,785.42 × 2,678.79
  4. Step 4: Simplify right side
    4,916.91x = 18,176,701.85
  5. Step 5: Solve for x
    x = 18,176,701.85/4,916.91
  6. Step 6: Final answer
    x = 3,696.77

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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.