Home / 4,188.70-6,283.07-2,115.10

Finding the Fourth Proportional to 4,188.70, 6,283.07 and 2,115.10

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Solution

The fourth proportional to 4,188.70, 6,283.07 and 2,115.10 is: 3,172.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,188.70 : 6,283.07 = 2,115.10 : x
  2. Step 2: Convert to fraction form
    4,188.70/6,283.07 = 2,115.10/x
  3. Step 3: Cross multiply
    4,188.70x = 6,283.07 × 2,115.10
  4. Step 4: Simplify right side
    4,188.70x = 13,289,321.36
  5. Step 5: Solve for x
    x = 13,289,321.36/4,188.70
  6. Step 6: Final answer
    x = 3,172.66

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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.