Home / 3,809.76-5,255.98-2,392.84

Finding the Fourth Proportional to 3,809.76, 5,255.98 and 2,392.84

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Solution

The fourth proportional to 3,809.76, 5,255.98 and 2,392.84 is: 3,301.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,809.76 : 5,255.98 = 2,392.84 : x
  2. Step 2: Convert to fraction form
    3,809.76/5,255.98 = 2,392.84/x
  3. Step 3: Cross multiply
    3,809.76x = 5,255.98 × 2,392.84
  4. Step 4: Simplify right side
    3,809.76x = 12,576,719.18
  5. Step 5: Solve for x
    x = 12,576,719.18/3,809.76
  6. Step 6: Final answer
    x = 3,301.18

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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.