Home / 5,355.31-7,390.88-3,086.73

Finding the Fourth Proportional to 5,355.31, 7,390.88 and 3,086.73

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Solution

The fourth proportional to 5,355.31, 7,390.88 and 3,086.73 is: 4,260.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,355.31 : 7,390.88 = 3,086.73 : x
  2. Step 2: Convert to fraction form
    5,355.31/7,390.88 = 3,086.73/x
  3. Step 3: Cross multiply
    5,355.31x = 7,390.88 × 3,086.73
  4. Step 4: Simplify right side
    5,355.31x = 22,813,651.02
  5. Step 5: Solve for x
    x = 22,813,651.02/5,355.31
  6. Step 6: Final answer
    x = 4,260.01

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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.