Home / 3,722.04-5,136.56-2,128.95

Finding the Fourth Proportional to 3,722.04, 5,136.56 and 2,128.95

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Solution

The fourth proportional to 3,722.04, 5,136.56 and 2,128.95 is: 2,938.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,722.04 : 5,136.56 = 2,128.95 : x
  2. Step 2: Convert to fraction form
    3,722.04/5,136.56 = 2,128.95/x
  3. Step 3: Cross multiply
    3,722.04x = 5,136.56 × 2,128.95
  4. Step 4: Simplify right side
    3,722.04x = 10,935,479.41
  5. Step 5: Solve for x
    x = 10,935,479.41/3,722.04
  6. Step 6: Final answer
    x = 2,938.03

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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.