Home / 4,916.48-6,784.86-2,678.42

Finding the Fourth Proportional to 4,916.48, 6,784.86 and 2,678.42

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Solution

The fourth proportional to 4,916.48, 6,784.86 and 2,678.42 is: 3,696.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,916.48 : 6,784.86 = 2,678.42 : x
  2. Step 2: Convert to fraction form
    4,916.48/6,784.86 = 2,678.42/x
  3. Step 3: Cross multiply
    4,916.48x = 6,784.86 × 2,678.42
  4. Step 4: Simplify right side
    4,916.48x = 18,172,704.72
  5. Step 5: Solve for x
    x = 18,172,704.72/4,916.48
  6. Step 6: Final answer
    x = 3,696.28

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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.