Home / 3,840.70-5,300.36-2,162.02

Finding the Fourth Proportional to 3,840.70, 5,300.36 and 2,162.02

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Solution

The fourth proportional to 3,840.70, 5,300.36 and 2,162.02 is: 2,983.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,840.70 : 5,300.36 = 2,162.02 : x
  2. Step 2: Convert to fraction form
    3,840.70/5,300.36 = 2,162.02/x
  3. Step 3: Cross multiply
    3,840.70x = 5,300.36 × 2,162.02
  4. Step 4: Simplify right side
    3,840.70x = 11,459,473.52
  5. Step 5: Solve for x
    x = 11,459,473.52/3,840.70
  6. Step 6: Final answer
    x = 2,983.69

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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.