Home / 5,538.58-7,643.21-3,020.64

Finding the Fourth Proportional to 5,538.58, 7,643.21 and 3,020.64

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Solution

The fourth proportional to 5,538.58, 7,643.21 and 3,020.64 is: 4,168.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,538.58 : 7,643.21 = 3,020.64 : x
  2. Step 2: Convert to fraction form
    5,538.58/7,643.21 = 3,020.64/x
  3. Step 3: Cross multiply
    5,538.58x = 7,643.21 × 3,020.64
  4. Step 4: Simplify right side
    5,538.58x = 23,087,385.85
  5. Step 5: Solve for x
    x = 23,087,385.85/5,538.58
  6. Step 6: Final answer
    x = 4,168.47

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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.