Home / 5,156.55-7,736.94-1,869.93

Finding the Fourth Proportional to 5,156.55, 7,736.94 and 1,869.93

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Solution

The fourth proportional to 5,156.55, 7,736.94 and 1,869.93 is: 2,805.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,156.55 : 7,736.94 = 1,869.93 : x
  2. Step 2: Convert to fraction form
    5,156.55/7,736.94 = 1,869.93/x
  3. Step 3: Cross multiply
    5,156.55x = 7,736.94 × 1,869.93
  4. Step 4: Simplify right side
    5,156.55x = 14,467,536.21
  5. Step 5: Solve for x
    x = 14,467,536.21/5,156.55
  6. Step 6: Final answer
    x = 2,805.66

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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.