Home / 5,394.50-7,446.84-3,999.68

Finding the Fourth Proportional to 5,394.50, 7,446.84 and 3,999.68

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Solution

The fourth proportional to 5,394.50, 7,446.84 and 3,999.68 is: 5,521.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,394.50 : 7,446.84 = 3,999.68 : x
  2. Step 2: Convert to fraction form
    5,394.50/7,446.84 = 3,999.68/x
  3. Step 3: Cross multiply
    5,394.50x = 7,446.84 × 3,999.68
  4. Step 4: Simplify right side
    5,394.50x = 29,784,977.01
  5. Step 5: Solve for x
    x = 29,784,977.01/5,394.50
  6. Step 6: Final answer
    x = 5,521.36

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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.