Home / 4,078.40-6,117.60-3,851.60

Finding the Fourth Proportional to 4,078.40, 6,117.60 and 3,851.60

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Solution

The fourth proportional to 4,078.40, 6,117.60 and 3,851.60 is: 5,777.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,078.40 : 6,117.60 = 3,851.60 : x
  2. Step 2: Convert to fraction form
    4,078.40/6,117.60 = 3,851.60/x
  3. Step 3: Cross multiply
    4,078.40x = 6,117.60 × 3,851.60
  4. Step 4: Simplify right side
    4,078.40x = 23,562,548.16
  5. Step 5: Solve for x
    x = 23,562,548.16/4,078.40
  6. Step 6: Final answer
    x = 5,777.40

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1.5x scale

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.