Home / 4,878.60-6,732.46-2,640.52

Finding the Fourth Proportional to 4,878.60, 6,732.46 and 2,640.52

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Solution

The fourth proportional to 4,878.60, 6,732.46 and 2,640.52 is: 3,643.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,878.60 : 6,732.46 = 2,640.52 : x
  2. Step 2: Convert to fraction form
    4,878.60/6,732.46 = 2,640.52/x
  3. Step 3: Cross multiply
    4,878.60x = 6,732.46 × 2,640.52
  4. Step 4: Simplify right side
    4,878.60x = 17,777,195.28
  5. Step 5: Solve for x
    x = 17,777,195.28/4,878.60
  6. Step 6: Final answer
    x = 3,643.91

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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.