Home / 4,806.96-7,212.24-1,687.20

Finding the Fourth Proportional to 4,806.96, 7,212.24 and 1,687.20

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Solution

The fourth proportional to 4,806.96, 7,212.24 and 1,687.20 is: 2,531.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,806.96 : 7,212.24 = 1,687.20 : x
  2. Step 2: Convert to fraction form
    4,806.96/7,212.24 = 1,687.20/x
  3. Step 3: Cross multiply
    4,806.96x = 7,212.24 × 1,687.20
  4. Step 4: Simplify right side
    4,806.96x = 12,168,491.33
  5. Step 5: Solve for x
    x = 12,168,491.33/4,806.96
  6. Step 6: Final answer
    x = 2,531.43

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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.