Home / 1,636.12-2,452.29-711.51

Finding the Fourth Proportional to 1,636.12, 2,452.29 and 711.51

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Solution

The fourth proportional to 1,636.12, 2,452.29 and 711.51 is: 1,066.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,636.12 : 2,452.29 = 711.51 : x
  2. Step 2: Convert to fraction form
    1,636.12/2,452.29 = 711.51/x
  3. Step 3: Cross multiply
    1,636.12x = 2,452.29 × 711.51
  4. Step 4: Simplify right side
    1,636.12x = 1,744,828.86
  5. Step 5: Solve for x
    x = 1,744,828.86/1,636.12
  6. Step 6: Final answer
    x = 1,066.44

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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.