Home / 5,051.57-6,971.38-2,813.45

Finding the Fourth Proportional to 5,051.57, 6,971.38 and 2,813.45

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Solution

The fourth proportional to 5,051.57, 6,971.38 and 2,813.45 is: 3,882.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,051.57 : 6,971.38 = 2,813.45 : x
  2. Step 2: Convert to fraction form
    5,051.57/6,971.38 = 2,813.45/x
  3. Step 3: Cross multiply
    5,051.57x = 6,971.38 × 2,813.45
  4. Step 4: Simplify right side
    5,051.57x = 19,613,613.47
  5. Step 5: Solve for x
    x = 19,613,613.47/5,051.57
  6. Step 6: Final answer
    x = 3,882.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.