Home / 5,436.27-8,157.65-1,973.79

Finding the Fourth Proportional to 5,436.27, 8,157.65 and 1,973.79

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Solution

The fourth proportional to 5,436.27, 8,157.65 and 1,973.79 is: 2,961.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,436.27 : 8,157.65 = 1,973.79 : x
  2. Step 2: Convert to fraction form
    5,436.27/8,157.65 = 1,973.79/x
  3. Step 3: Cross multiply
    5,436.27x = 8,157.65 × 1,973.79
  4. Step 4: Simplify right side
    5,436.27x = 16,101,478.12
  5. Step 5: Solve for x
    x = 16,101,478.12/5,436.27
  6. Step 6: Final answer
    x = 2,961.86

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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.