Home / 5,454.30-8,185.02-2,990.84

Finding the Fourth Proportional to 5,454.30, 8,185.02 and 2,990.84

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Solution

The fourth proportional to 5,454.30, 8,185.02 and 2,990.84 is: 4,488.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,454.30 : 8,185.02 = 2,990.84 : x
  2. Step 2: Convert to fraction form
    5,454.30/8,185.02 = 2,990.84/x
  3. Step 3: Cross multiply
    5,454.30x = 8,185.02 × 2,990.84
  4. Step 4: Simplify right side
    5,454.30x = 24,480,085.22
  5. Step 5: Solve for x
    x = 24,480,085.22/5,454.30
  6. Step 6: Final answer
    x = 4,488.22

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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.