Home / 3,123.47-4,685.21-1,824.03

Finding the Fourth Proportional to 3,123.47, 4,685.21 and 1,824.03

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Solution

The fourth proportional to 3,123.47, 4,685.21 and 1,824.03 is: 2,736.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,123.47 : 4,685.21 = 1,824.03 : x
  2. Step 2: Convert to fraction form
    3,123.47/4,685.21 = 1,824.03/x
  3. Step 3: Cross multiply
    3,123.47x = 4,685.21 × 1,824.03
  4. Step 4: Simplify right side
    3,123.47x = 8,545,954.48
  5. Step 5: Solve for x
    x = 8,545,954.48/3,123.47
  6. Step 6: Final answer
    x = 2,736.04

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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.