Home / 5,431.32-8,140.97-3,554.96

Finding the Fourth Proportional to 5,431.32, 8,140.97 and 3,554.96

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Solution

The fourth proportional to 5,431.32, 8,140.97 and 3,554.96 is: 5,328.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,431.32 : 8,140.97 = 3,554.96 : x
  2. Step 2: Convert to fraction form
    5,431.32/8,140.97 = 3,554.96/x
  3. Step 3: Cross multiply
    5,431.32x = 8,140.97 × 3,554.96
  4. Step 4: Simplify right side
    5,431.32x = 28,940,790.89
  5. Step 5: Solve for x
    x = 28,940,790.89/5,431.32
  6. Step 6: Final answer
    x = 5,328.50

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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.