Home / 5,431.86-8,141.40-2,503.98

Finding the Fourth Proportional to 5,431.86, 8,141.40 and 2,503.98

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Solution

The fourth proportional to 5,431.86, 8,141.40 and 2,503.98 is: 3,753.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,431.86 : 8,141.40 = 2,503.98 : x
  2. Step 2: Convert to fraction form
    5,431.86/8,141.40 = 2,503.98/x
  3. Step 3: Cross multiply
    5,431.86x = 8,141.40 × 2,503.98
  4. Step 4: Simplify right side
    5,431.86x = 20,385,902.77
  5. Step 5: Solve for x
    x = 20,385,902.77/5,431.86
  6. Step 6: Final answer
    x = 3,753.02

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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.