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Finding the Fourth Proportional to 4,839.72, 6,678.04 and 2,851.96

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Solution

The fourth proportional to 4,839.72, 6,678.04 and 2,851.96 is: 3,935.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,839.72 : 6,678.04 = 2,851.96 : x
  2. Step 2: Convert to fraction form
    4,839.72/6,678.04 = 2,851.96/x
  3. Step 3: Cross multiply
    4,839.72x = 6,678.04 × 2,851.96
  4. Step 4: Simplify right side
    4,839.72x = 19,045,502.96
  5. Step 5: Solve for x
    x = 19,045,502.96/4,839.72
  6. Step 6: Final answer
    x = 3,935.25

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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.