Home / 5,438.69-8,156.31-3,355.57

Finding the Fourth Proportional to 5,438.69, 8,156.31 and 3,355.57

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Solution

The fourth proportional to 5,438.69, 8,156.31 and 3,355.57 is: 5,032.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,438.69 : 8,156.31 = 3,355.57 : x
  2. Step 2: Convert to fraction form
    5,438.69/8,156.31 = 3,355.57/x
  3. Step 3: Cross multiply
    5,438.69x = 8,156.31 × 3,355.57
  4. Step 4: Simplify right side
    5,438.69x = 27,369,052.37
  5. Step 5: Solve for x
    x = 27,369,052.37/5,438.69
  6. Step 6: Final answer
    x = 5,032.29

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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.