Home / 4,878.73-6,732.66-2,640.63

Finding the Fourth Proportional to 4,878.73, 6,732.66 and 2,640.63

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Solution

The fourth proportional to 4,878.73, 6,732.66 and 2,640.63 is: 3,644.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,878.73 : 6,732.66 = 2,640.63 : x
  2. Step 2: Convert to fraction form
    4,878.73/6,732.66 = 2,640.63/x
  3. Step 3: Cross multiply
    4,878.73x = 6,732.66 × 2,640.63
  4. Step 4: Simplify right side
    4,878.73x = 17,778,438.73
  5. Step 5: Solve for x
    x = 17,778,438.73/4,878.73
  6. Step 6: Final answer
    x = 3,644.07

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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.