Home / 5,072.96-7,000.32-2,976.80

Finding the Fourth Proportional to 5,072.96, 7,000.32 and 2,976.80

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Solution

The fourth proportional to 5,072.96, 7,000.32 and 2,976.80 is: 4,107.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,072.96 : 7,000.32 = 2,976.80 : x
  2. Step 2: Convert to fraction form
    5,072.96/7,000.32 = 2,976.80/x
  3. Step 3: Cross multiply
    5,072.96x = 7,000.32 × 2,976.80
  4. Step 4: Simplify right side
    5,072.96x = 20,838,552.58
  5. Step 5: Solve for x
    x = 20,838,552.58/5,072.96
  6. Step 6: Final answer
    x = 4,107.77

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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.