Home / 4,269.80-6,403.50-2,078.60

Finding the Fourth Proportional to 4,269.80, 6,403.50 and 2,078.60

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Solution

The fourth proportional to 4,269.80, 6,403.50 and 2,078.60 is: 3,117.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,269.80 : 6,403.50 = 2,078.60 : x
  2. Step 2: Convert to fraction form
    4,269.80/6,403.50 = 2,078.60/x
  3. Step 3: Cross multiply
    4,269.80x = 6,403.50 × 2,078.60
  4. Step 4: Simplify right side
    4,269.80x = 13,310,315.10
  5. Step 5: Solve for x
    x = 13,310,315.10/4,269.80
  6. Step 6: Final answer
    x = 3,117.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.