Home / 3,715.36-5,117.90-2,829.62

Finding the Fourth Proportional to 3,715.36, 5,117.90 and 2,829.62

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Solution

The fourth proportional to 3,715.36, 5,117.90 and 2,829.62 is: 3,897.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,715.36 : 5,117.90 = 2,829.62 : x
  2. Step 2: Convert to fraction form
    3,715.36/5,117.90 = 2,829.62/x
  3. Step 3: Cross multiply
    3,715.36x = 5,117.90 × 2,829.62
  4. Step 4: Simplify right side
    3,715.36x = 14,481,698.05
  5. Step 5: Solve for x
    x = 14,481,698.05/3,715.36
  6. Step 6: Final answer
    x = 3,897.80

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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.