Home / 5,214.79-7,825.43-2,136.79

Finding the Fourth Proportional to 5,214.79, 7,825.43 and 2,136.79

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Solution

The fourth proportional to 5,214.79, 7,825.43 and 2,136.79 is: 3,206.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,214.79 : 7,825.43 = 2,136.79 : x
  2. Step 2: Convert to fraction form
    5,214.79/7,825.43 = 2,136.79/x
  3. Step 3: Cross multiply
    5,214.79x = 7,825.43 × 2,136.79
  4. Step 4: Simplify right side
    5,214.79x = 16,721,300.57
  5. Step 5: Solve for x
    x = 16,721,300.57/5,214.79
  6. Step 6: Final answer
    x = 3,206.51

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1.5x scale

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.