Home / 4,916.36-6,784.41-2,678.21

Finding the Fourth Proportional to 4,916.36, 6,784.41 and 2,678.21

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Solution

The fourth proportional to 4,916.36, 6,784.41 and 2,678.21 is: 3,695.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,916.36 : 6,784.41 = 2,678.21 : x
  2. Step 2: Convert to fraction form
    4,916.36/6,784.41 = 2,678.21/x
  3. Step 3: Cross multiply
    4,916.36x = 6,784.41 × 2,678.21
  4. Step 4: Simplify right side
    4,916.36x = 18,170,040.78
  5. Step 5: Solve for x
    x = 18,170,040.78/4,916.36
  6. Step 6: Final answer
    x = 3,695.84

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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.