Home / 3,852.45-5,314.65-2,279.63

Finding the Fourth Proportional to 3,852.45, 5,314.65 and 2,279.63

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Solution

The fourth proportional to 3,852.45, 5,314.65 and 2,279.63 is: 3,144.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,852.45 : 5,314.65 = 2,279.63 : x
  2. Step 2: Convert to fraction form
    3,852.45/5,314.65 = 2,279.63/x
  3. Step 3: Cross multiply
    3,852.45x = 5,314.65 × 2,279.63
  4. Step 4: Simplify right side
    3,852.45x = 12,115,409.01
  5. Step 5: Solve for x
    x = 12,115,409.01/3,852.45
  6. Step 6: Final answer
    x = 3,144.86

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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.