Home / 1,742.14-2,613.46-509.38

Finding the Fourth Proportional to 1,742.14, 2,613.46 and 509.38

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Solution

The fourth proportional to 1,742.14, 2,613.46 and 509.38 is: 764.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,742.14 : 2,613.46 = 509.38 : x
  2. Step 2: Convert to fraction form
    1,742.14/2,613.46 = 509.38/x
  3. Step 3: Cross multiply
    1,742.14x = 2,613.46 × 509.38
  4. Step 4: Simplify right side
    1,742.14x = 1,331,244.25
  5. Step 5: Solve for x
    x = 1,331,244.25/1,742.14
  6. Step 6: Final answer
    x = 764.14

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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.