Home / 4,192-6,279.78-2,875.60

Finding the Fourth Proportional to 4,192, 6,279.78 and 2,875.60

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Solution

The fourth proportional to 4,192, 6,279.78 and 2,875.60 is: 4,307.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,192 : 6,279.78 = 2,875.60 : x
  2. Step 2: Convert to fraction form
    4,192/6,279.78 = 2,875.60/x
  3. Step 3: Cross multiply
    4,192x = 6,279.78 × 2,875.60
  4. Step 4: Simplify right side
    4,192x = 18,058,135.37
  5. Step 5: Solve for x
    x = 18,058,135.37/4,192
  6. Step 6: Final answer
    x = 4,307.76

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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.