Home / 5,117.86-7,670.40-2,192.77

Finding the Fourth Proportional to 5,117.86, 7,670.40 and 2,192.77

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Solution

The fourth proportional to 5,117.86, 7,670.40 and 2,192.77 is: 3,286.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,117.86 : 7,670.40 = 2,192.77 : x
  2. Step 2: Convert to fraction form
    5,117.86/7,670.40 = 2,192.77/x
  3. Step 3: Cross multiply
    5,117.86x = 7,670.40 × 2,192.77
  4. Step 4: Simplify right side
    5,117.86x = 16,819,423.01
  5. Step 5: Solve for x
    x = 16,819,423.01/5,117.86
  6. Step 6: Final answer
    x = 3,286.42

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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.