Home / 3,848.89-5,311.49-2,080.49

Finding the Fourth Proportional to 3,848.89, 5,311.49 and 2,080.49

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Solution

The fourth proportional to 3,848.89, 5,311.49 and 2,080.49 is: 2,871.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,848.89 : 5,311.49 = 2,080.49 : x
  2. Step 2: Convert to fraction form
    3,848.89/5,311.49 = 2,080.49/x
  3. Step 3: Cross multiply
    3,848.89x = 5,311.49 × 2,080.49
  4. Step 4: Simplify right side
    3,848.89x = 11,050,501.83
  5. Step 5: Solve for x
    x = 11,050,501.83/3,848.89
  6. Step 6: Final answer
    x = 2,871.09

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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.