Home / 4,721.23-7,080.60-2,123.56

Finding the Fourth Proportional to 4,721.23, 7,080.60 and 2,123.56

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Solution

The fourth proportional to 4,721.23, 7,080.60 and 2,123.56 is: 3,184.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,721.23 : 7,080.60 = 2,123.56 : x
  2. Step 2: Convert to fraction form
    4,721.23/7,080.60 = 2,123.56/x
  3. Step 3: Cross multiply
    4,721.23x = 7,080.60 × 2,123.56
  4. Step 4: Simplify right side
    4,721.23x = 15,036,078.94
  5. Step 5: Solve for x
    x = 15,036,078.94/4,721.23
  6. Step 6: Final answer
    x = 3,184.78

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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.