Home / 3,628.79-5,007.34-2,136.62

Finding the Fourth Proportional to 3,628.79, 5,007.34 and 2,136.62

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Solution

The fourth proportional to 3,628.79, 5,007.34 and 2,136.62 is: 2,948.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,628.79 : 5,007.34 = 2,136.62 : x
  2. Step 2: Convert to fraction form
    3,628.79/5,007.34 = 2,136.62/x
  3. Step 3: Cross multiply
    3,628.79x = 5,007.34 × 2,136.62
  4. Step 4: Simplify right side
    3,628.79x = 10,698,747.07
  5. Step 5: Solve for x
    x = 10,698,747.07/3,628.79
  6. Step 6: Final answer
    x = 2,948.30

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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.