Home / 4,876.50-6,730.62-3,107.70

Finding the Fourth Proportional to 4,876.50, 6,730.62 and 3,107.70

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Solution

The fourth proportional to 4,876.50, 6,730.62 and 3,107.70 is: 4,289.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,876.50 : 6,730.62 = 3,107.70 : x
  2. Step 2: Convert to fraction form
    4,876.50/6,730.62 = 3,107.70/x
  3. Step 3: Cross multiply
    4,876.50x = 6,730.62 × 3,107.70
  4. Step 4: Simplify right side
    4,876.50x = 20,916,747.77
  5. Step 5: Solve for x
    x = 20,916,747.77/4,876.50
  6. Step 6: Final answer
    x = 4,289.30

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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.