Home / 5,490.80-8,228.09-2,521.92

Finding the Fourth Proportional to 5,490.80, 8,228.09 and 2,521.92

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Solution

The fourth proportional to 5,490.80, 8,228.09 and 2,521.92 is: 3,779.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,490.80 : 8,228.09 = 2,521.92 : x
  2. Step 2: Convert to fraction form
    5,490.80/8,228.09 = 2,521.92/x
  3. Step 3: Cross multiply
    5,490.80x = 8,228.09 × 2,521.92
  4. Step 4: Simplify right side
    5,490.80x = 20,750,584.73
  5. Step 5: Solve for x
    x = 20,750,584.73/5,490.80
  6. Step 6: Final answer
    x = 3,779.16

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1.5x scale

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.