Home / 6,435.27-8,878.55-4,077.09

Finding the Fourth Proportional to 6,435.27, 8,878.55 and 4,077.09

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Solution

The fourth proportional to 6,435.27, 8,878.55 and 4,077.09 is: 5,625.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,435.27 : 8,878.55 = 4,077.09 : x
  2. Step 2: Convert to fraction form
    6,435.27/8,878.55 = 4,077.09/x
  3. Step 3: Cross multiply
    6,435.27x = 8,878.55 × 4,077.09
  4. Step 4: Simplify right side
    6,435.27x = 36,198,627.03
  5. Step 5: Solve for x
    x = 36,198,627.03/6,435.27
  6. Step 6: Final answer
    x = 5,625.04

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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.