Home / 2,320.35-3,202.15-1,311.98

Finding the Fourth Proportional to 2,320.35, 3,202.15 and 1,311.98

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Solution

The fourth proportional to 2,320.35, 3,202.15 and 1,311.98 is: 1,810.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,320.35 : 3,202.15 = 1,311.98 : x
  2. Step 2: Convert to fraction form
    2,320.35/3,202.15 = 1,311.98/x
  3. Step 3: Cross multiply
    2,320.35x = 3,202.15 × 1,311.98
  4. Step 4: Simplify right side
    2,320.35x = 4,201,141.01
  5. Step 5: Solve for x
    x = 4,201,141.01/2,320.35
  6. Step 6: Final answer
    x = 1,810.56

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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.