Home / 6,103.90-8,423.40-3,309.40

Finding the Fourth Proportional to 6,103.90, 8,423.40 and 3,309.40

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Solution

The fourth proportional to 6,103.90, 8,423.40 and 3,309.40 is: 4,566.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,103.90 : 8,423.40 = 3,309.40 : x
  2. Step 2: Convert to fraction form
    6,103.90/8,423.40 = 3,309.40/x
  3. Step 3: Cross multiply
    6,103.90x = 8,423.40 × 3,309.40
  4. Step 4: Simplify right side
    6,103.90x = 27,876,399.96
  5. Step 5: Solve for x
    x = 27,876,399.96/6,103.90
  6. Step 6: Final answer
    x = 4,566.98

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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.