Home / 4,827.78-6,662.76-2,939.16

Finding the Fourth Proportional to 4,827.78, 6,662.76 and 2,939.16

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Solution

The fourth proportional to 4,827.78, 6,662.76 and 2,939.16 is: 4,056.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,827.78 : 6,662.76 = 2,939.16 : x
  2. Step 2: Convert to fraction form
    4,827.78/6,662.76 = 2,939.16/x
  3. Step 3: Cross multiply
    4,827.78x = 6,662.76 × 2,939.16
  4. Step 4: Simplify right side
    4,827.78x = 19,582,917.68
  5. Step 5: Solve for x
    x = 19,582,917.68/4,827.78
  6. Step 6: Final answer
    x = 4,056.30

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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.