Home / 5,185.44-7,781.12-1,898.10

Finding the Fourth Proportional to 5,185.44, 7,781.12 and 1,898.10

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Solution

The fourth proportional to 5,185.44, 7,781.12 and 1,898.10 is: 2,848.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,185.44 : 7,781.12 = 1,898.10 : x
  2. Step 2: Convert to fraction form
    5,185.44/7,781.12 = 1,898.10/x
  3. Step 3: Cross multiply
    5,185.44x = 7,781.12 × 1,898.10
  4. Step 4: Simplify right side
    5,185.44x = 14,769,343.87
  5. Step 5: Solve for x
    x = 14,769,343.87/5,185.44
  6. Step 6: Final answer
    x = 2,848.23

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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.