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Finding the Fourth Proportional to 7,750.94, 10,696.41 and 4,214.15

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Solution

The fourth proportional to 7,750.94, 10,696.41 and 4,214.15 is: 5,815.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,750.94 : 10,696.41 = 4,214.15 : x
  2. Step 2: Convert to fraction form
    7,750.94/10,696.41 = 4,214.15/x
  3. Step 3: Cross multiply
    7,750.94x = 10,696.41 × 4,214.15
  4. Step 4: Simplify right side
    7,750.94x = 45,076,201.65
  5. Step 5: Solve for x
    x = 45,076,201.65/7,750.94
  6. Step 6: Final answer
    x = 5,815.58

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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.