Home / 5,122.53-7,685.31-1,835.55

Finding the Fourth Proportional to 5,122.53, 7,685.31 and 1,835.55

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Solution

The fourth proportional to 5,122.53, 7,685.31 and 1,835.55 is: 2,753.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,122.53 : 7,685.31 = 1,835.55 : x
  2. Step 2: Convert to fraction form
    5,122.53/7,685.31 = 1,835.55/x
  3. Step 3: Cross multiply
    5,122.53x = 7,685.31 × 1,835.55
  4. Step 4: Simplify right side
    5,122.53x = 14,106,770.77
  5. Step 5: Solve for x
    x = 14,106,770.77/5,122.53
  6. Step 6: Final answer
    x = 2,753.87

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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.