Home / 1,685.31-2,524.32-1,099.68

Finding the Fourth Proportional to 1,685.31, 2,524.32 and 1,099.68

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Solution

The fourth proportional to 1,685.31, 2,524.32 and 1,099.68 is: 1,647.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,685.31 : 2,524.32 = 1,099.68 : x
  2. Step 2: Convert to fraction form
    1,685.31/2,524.32 = 1,099.68/x
  3. Step 3: Cross multiply
    1,685.31x = 2,524.32 × 1,099.68
  4. Step 4: Simplify right side
    1,685.31x = 2,775,944.22
  5. Step 5: Solve for x
    x = 2,775,944.22/1,685.31
  6. Step 6: Final answer
    x = 1,647.14

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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.