Home / 4,878.30-6,732-2,640.12

Finding the Fourth Proportional to 4,878.30, 6,732 and 2,640.12

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Solution

The fourth proportional to 4,878.30, 6,732 and 2,640.12 is: 3,643.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,878.30 : 6,732 = 2,640.12 : x
  2. Step 2: Convert to fraction form
    4,878.30/6,732 = 2,640.12/x
  3. Step 3: Cross multiply
    4,878.30x = 6,732 × 2,640.12
  4. Step 4: Simplify right side
    4,878.30x = 17,773,287.84
  5. Step 5: Solve for x
    x = 17,773,287.84/4,878.30
  6. Step 6: Final answer
    x = 3,643.34

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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.