Home / 5,187.71-7,156.72-3,197.54

Finding the Fourth Proportional to 5,187.71, 7,156.72 and 3,197.54

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Solution

The fourth proportional to 5,187.71, 7,156.72 and 3,197.54 is: 4,411.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,187.71 : 7,156.72 = 3,197.54 : x
  2. Step 2: Convert to fraction form
    5,187.71/7,156.72 = 3,197.54/x
  3. Step 3: Cross multiply
    5,187.71x = 7,156.72 × 3,197.54
  4. Step 4: Simplify right side
    5,187.71x = 22,883,854.69
  5. Step 5: Solve for x
    x = 22,883,854.69/5,187.71
  6. Step 6: Final answer
    x = 4,411.17

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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.