Home / 4,890.56-7,330.37-2,118.56

Finding the Fourth Proportional to 4,890.56, 7,330.37 and 2,118.56

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Solution

The fourth proportional to 4,890.56, 7,330.37 and 2,118.56 is: 3,175.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,890.56 : 7,330.37 = 2,118.56 : x
  2. Step 2: Convert to fraction form
    4,890.56/7,330.37 = 2,118.56/x
  3. Step 3: Cross multiply
    4,890.56x = 7,330.37 × 2,118.56
  4. Step 4: Simplify right side
    4,890.56x = 15,529,781.42
  5. Step 5: Solve for x
    x = 15,529,781.42/4,890.56
  6. Step 6: Final answer
    x = 3,175.46

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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.