Home / 5,436.34-8,157.22-2,151.80

Finding the Fourth Proportional to 5,436.34, 8,157.22 and 2,151.80

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Solution

The fourth proportional to 5,436.34, 8,157.22 and 2,151.80 is: 3,228.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,436.34 : 8,157.22 = 2,151.80 : x
  2. Step 2: Convert to fraction form
    5,436.34/8,157.22 = 2,151.80/x
  3. Step 3: Cross multiply
    5,436.34x = 8,157.22 × 2,151.80
  4. Step 4: Simplify right side
    5,436.34x = 17,552,706.00
  5. Step 5: Solve for x
    x = 17,552,706.00/5,436.34
  6. Step 6: Final answer
    x = 3,228.77

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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.