Home / 4,878.45-6,732.72-2,991.24

Finding the Fourth Proportional to 4,878.45, 6,732.72 and 2,991.24

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Solution

The fourth proportional to 4,878.45, 6,732.72 and 2,991.24 is: 4,128.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,878.45 : 6,732.72 = 2,991.24 : x
  2. Step 2: Convert to fraction form
    4,878.45/6,732.72 = 2,991.24/x
  3. Step 3: Cross multiply
    4,878.45x = 6,732.72 × 2,991.24
  4. Step 4: Simplify right side
    4,878.45x = 20,139,181.37
  5. Step 5: Solve for x
    x = 20,139,181.37/4,878.45
  6. Step 6: Final answer
    x = 4,128.19

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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.