Home / 5,115.34-7,677.87-2,651.93

Finding the Fourth Proportional to 5,115.34, 7,677.87 and 2,651.93

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Solution

The fourth proportional to 5,115.34, 7,677.87 and 2,651.93 is: 3,980.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,115.34 : 7,677.87 = 2,651.93 : x
  2. Step 2: Convert to fraction form
    5,115.34/7,677.87 = 2,651.93/x
  3. Step 3: Cross multiply
    5,115.34x = 7,677.87 × 2,651.93
  4. Step 4: Simplify right side
    5,115.34x = 20,361,135.40
  5. Step 5: Solve for x
    x = 20,361,135.40/5,115.34
  6. Step 6: Final answer
    x = 3,980.41

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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.