Home / 5,458-8,185.92-2,990.56

Finding the Fourth Proportional to 5,458, 8,185.92 and 2,990.56

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Solution

The fourth proportional to 5,458, 8,185.92 and 2,990.56 is: 4,485.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,458 : 8,185.92 = 2,990.56 : x
  2. Step 2: Convert to fraction form
    5,458/8,185.92 = 2,990.56/x
  3. Step 3: Cross multiply
    5,458x = 8,185.92 × 2,990.56
  4. Step 4: Simplify right side
    5,458x = 24,480,484.92
  5. Step 5: Solve for x
    x = 24,480,484.92/5,458
  6. Step 6: Final answer
    x = 4,485.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.