Home / 3,846.85-5,305.13-2,521.28

Finding the Fourth Proportional to 3,846.85, 5,305.13 and 2,521.28

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Solution

The fourth proportional to 3,846.85, 5,305.13 and 2,521.28 is: 3,477.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,846.85 : 5,305.13 = 2,521.28 : x
  2. Step 2: Convert to fraction form
    3,846.85/5,305.13 = 2,521.28/x
  3. Step 3: Cross multiply
    3,846.85x = 5,305.13 × 2,521.28
  4. Step 4: Simplify right side
    3,846.85x = 13,375,728.52
  5. Step 5: Solve for x
    x = 13,375,728.52/3,846.85
  6. Step 6: Final answer
    x = 3,477.06

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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.