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Finding the Fourth Proportional to 4,984.64, 6,879.84 and 2,995.28

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Solution

The fourth proportional to 4,984.64, 6,879.84 and 2,995.28 is: 4,134.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,984.64 : 6,879.84 = 2,995.28 : x
  2. Step 2: Convert to fraction form
    4,984.64/6,879.84 = 2,995.28/x
  3. Step 3: Cross multiply
    4,984.64x = 6,879.84 × 2,995.28
  4. Step 4: Simplify right side
    4,984.64x = 20,607,047.16
  5. Step 5: Solve for x
    x = 20,607,047.16/4,984.64
  6. Step 6: Final answer
    x = 4,134.11

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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.