Home / 4,878.59-6,732.42-2,640.45

Finding the Fourth Proportional to 4,878.59, 6,732.42 and 2,640.45

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Solution

The fourth proportional to 4,878.59, 6,732.42 and 2,640.45 is: 3,643.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,878.59 : 6,732.42 = 2,640.45 : x
  2. Step 2: Convert to fraction form
    4,878.59/6,732.42 = 2,640.45/x
  3. Step 3: Cross multiply
    4,878.59x = 6,732.42 × 2,640.45
  4. Step 4: Simplify right side
    4,878.59x = 17,776,618.39
  5. Step 5: Solve for x
    x = 17,776,618.39/4,878.59
  6. Step 6: Final answer
    x = 3,643.81

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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.