Home / 6,078.47-8,388.57-3,425.99

Finding the Fourth Proportional to 6,078.47, 8,388.57 and 3,425.99

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Solution

The fourth proportional to 6,078.47, 8,388.57 and 3,425.99 is: 4,728.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,078.47 : 8,388.57 = 3,425.99 : x
  2. Step 2: Convert to fraction form
    6,078.47/8,388.57 = 3,425.99/x
  3. Step 3: Cross multiply
    6,078.47x = 8,388.57 × 3,425.99
  4. Step 4: Simplify right side
    6,078.47x = 28,739,114.99
  5. Step 5: Solve for x
    x = 28,739,114.99/6,078.47
  6. Step 6: Final answer
    x = 4,728.02

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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.