Home / 6,078.10-8,388.12-3,389.38

Finding the Fourth Proportional to 6,078.10, 8,388.12 and 3,389.38

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Solution

The fourth proportional to 6,078.10, 8,388.12 and 3,389.38 is: 4,677.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,078.10 : 8,388.12 = 3,389.38 : x
  2. Step 2: Convert to fraction form
    6,078.10/8,388.12 = 3,389.38/x
  3. Step 3: Cross multiply
    6,078.10x = 8,388.12 × 3,389.38
  4. Step 4: Simplify right side
    6,078.10x = 28,430,526.17
  5. Step 5: Solve for x
    x = 28,430,526.17/6,078.10
  6. Step 6: Final answer
    x = 4,677.54

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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.