Home / 4,878.60-6,732.54-2,782.68

Finding the Fourth Proportional to 4,878.60, 6,732.54 and 2,782.68

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Solution

The fourth proportional to 4,878.60, 6,732.54 and 2,782.68 is: 3,840.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,878.60 : 6,732.54 = 2,782.68 : x
  2. Step 2: Convert to fraction form
    4,878.60/6,732.54 = 2,782.68/x
  3. Step 3: Cross multiply
    4,878.60x = 6,732.54 × 2,782.68
  4. Step 4: Simplify right side
    4,878.60x = 18,734,504.41
  5. Step 5: Solve for x
    x = 18,734,504.41/4,878.60
  6. Step 6: Final answer
    x = 3,840.14

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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.