Home / 5,458.31-8,189.09-2,538.35

Finding the Fourth Proportional to 5,458.31, 8,189.09 and 2,538.35

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Solution

The fourth proportional to 5,458.31, 8,189.09 and 2,538.35 is: 3,808.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,458.31 : 8,189.09 = 2,538.35 : x
  2. Step 2: Convert to fraction form
    5,458.31/8,189.09 = 2,538.35/x
  3. Step 3: Cross multiply
    5,458.31x = 8,189.09 × 2,538.35
  4. Step 4: Simplify right side
    5,458.31x = 20,786,763.91
  5. Step 5: Solve for x
    x = 20,786,763.91/5,458.31
  6. Step 6: Final answer
    x = 3,808.28

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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.