Home / 3,848.64-5,311.12-2,080.24

Finding the Fourth Proportional to 3,848.64, 5,311.12 and 2,080.24

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Solution

The fourth proportional to 3,848.64, 5,311.12 and 2,080.24 is: 2,870.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,848.64 : 5,311.12 = 2,080.24 : x
  2. Step 2: Convert to fraction form
    3,848.64/5,311.12 = 2,080.24/x
  3. Step 3: Cross multiply
    3,848.64x = 5,311.12 × 2,080.24
  4. Step 4: Simplify right side
    3,848.64x = 11,048,393.87
  5. Step 5: Solve for x
    x = 11,048,393.87/3,848.64
  6. Step 6: Final answer
    x = 2,870.73

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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.