Home / 4,108.40-6,156.20-3,455.60

Finding the Fourth Proportional to 4,108.40, 6,156.20 and 3,455.60

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Solution

The fourth proportional to 4,108.40, 6,156.20 and 3,455.60 is: 5,178.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,108.40 : 6,156.20 = 3,455.60 : x
  2. Step 2: Convert to fraction form
    4,108.40/6,156.20 = 3,455.60/x
  3. Step 3: Cross multiply
    4,108.40x = 6,156.20 × 3,455.60
  4. Step 4: Simplify right side
    4,108.40x = 21,273,364.72
  5. Step 5: Solve for x
    x = 21,273,364.72/4,108.40
  6. Step 6: Final answer
    x = 5,178.02

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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.