Home / 3,998.31-5,518.35-2,320.24

Finding the Fourth Proportional to 3,998.31, 5,518.35 and 2,320.24

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Solution

The fourth proportional to 3,998.31, 5,518.35 and 2,320.24 is: 3,202.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,998.31 : 5,518.35 = 2,320.24 : x
  2. Step 2: Convert to fraction form
    3,998.31/5,518.35 = 2,320.24/x
  3. Step 3: Cross multiply
    3,998.31x = 5,518.35 × 2,320.24
  4. Step 4: Simplify right side
    3,998.31x = 12,803,896.40
  5. Step 5: Solve for x
    x = 12,803,896.40/3,998.31
  6. Step 6: Final answer
    x = 3,202.33

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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.