Home / 4,945.20-7,423.20-3,098.40

Finding the Fourth Proportional to 4,945.20, 7,423.20 and 3,098.40

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Solution

The fourth proportional to 4,945.20, 7,423.20 and 3,098.40 is: 4,650.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,945.20 : 7,423.20 = 3,098.40 : x
  2. Step 2: Convert to fraction form
    4,945.20/7,423.20 = 3,098.40/x
  3. Step 3: Cross multiply
    4,945.20x = 7,423.20 × 3,098.40
  4. Step 4: Simplify right side
    4,945.20x = 23,000,042.88
  5. Step 5: Solve for x
    x = 23,000,042.88/4,945.20
  6. Step 6: Final answer
    x = 4,650.98

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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.