Home / 5,218.19-7,827.29-1,757.87

Finding the Fourth Proportional to 5,218.19, 7,827.29 and 1,757.87

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Solution

The fourth proportional to 5,218.19, 7,827.29 and 1,757.87 is: 2,636.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,218.19 : 7,827.29 = 1,757.87 : x
  2. Step 2: Convert to fraction form
    5,218.19/7,827.29 = 1,757.87/x
  3. Step 3: Cross multiply
    5,218.19x = 7,827.29 × 1,757.87
  4. Step 4: Simplify right side
    5,218.19x = 13,759,358.27
  5. Step 5: Solve for x
    x = 13,759,358.27/5,218.19
  6. Step 6: Final answer
    x = 2,636.81

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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.