Home / 4,878.49-6,732.28-2,640.37

Finding the Fourth Proportional to 4,878.49, 6,732.28 and 2,640.37

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Solution

The fourth proportional to 4,878.49, 6,732.28 and 2,640.37 is: 3,643.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,878.49 : 6,732.28 = 2,640.37 : x
  2. Step 2: Convert to fraction form
    4,878.49/6,732.28 = 2,640.37/x
  3. Step 3: Cross multiply
    4,878.49x = 6,732.28 × 2,640.37
  4. Step 4: Simplify right side
    4,878.49x = 17,775,710.14
  5. Step 5: Solve for x
    x = 17,775,710.14/4,878.49
  6. Step 6: Final answer
    x = 3,643.69

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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.