Home / 1,672.36-2,508.18-518.12

Finding the Fourth Proportional to 1,672.36, 2,508.18 and 518.12

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Solution

The fourth proportional to 1,672.36, 2,508.18 and 518.12 is: 777.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,672.36 : 2,508.18 = 518.12 : x
  2. Step 2: Convert to fraction form
    1,672.36/2,508.18 = 518.12/x
  3. Step 3: Cross multiply
    1,672.36x = 2,508.18 × 518.12
  4. Step 4: Simplify right side
    1,672.36x = 1,299,538.22
  5. Step 5: Solve for x
    x = 1,299,538.22/1,672.36
  6. Step 6: Final answer
    x = 777.07

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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.