Home / 5,214.90-7,196.54-2,857.02

Finding the Fourth Proportional to 5,214.90, 7,196.54 and 2,857.02

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Solution

The fourth proportional to 5,214.90, 7,196.54 and 2,857.02 is: 3,942.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,214.90 : 7,196.54 = 2,857.02 : x
  2. Step 2: Convert to fraction form
    5,214.90/7,196.54 = 2,857.02/x
  3. Step 3: Cross multiply
    5,214.90x = 7,196.54 × 2,857.02
  4. Step 4: Simplify right side
    5,214.90x = 20,560,658.71
  5. Step 5: Solve for x
    x = 20,560,658.71/5,214.90
  6. Step 6: Final answer
    x = 3,942.68

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1.5x scale

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.