Home / 5,521.48-7,619.84-3,164.38

Finding the Fourth Proportional to 5,521.48, 7,619.84 and 3,164.38

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Solution

The fourth proportional to 5,521.48, 7,619.84 and 3,164.38 is: 4,366.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,521.48 : 7,619.84 = 3,164.38 : x
  2. Step 2: Convert to fraction form
    5,521.48/7,619.84 = 3,164.38/x
  3. Step 3: Cross multiply
    5,521.48x = 7,619.84 × 3,164.38
  4. Step 4: Simplify right side
    5,521.48x = 24,112,069.30
  5. Step 5: Solve for x
    x = 24,112,069.30/5,521.48
  6. Step 6: Final answer
    x = 4,366.96

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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.