Home / 3,020.56-4,167.84-1,900.68

Finding the Fourth Proportional to 3,020.56, 4,167.84 and 1,900.68

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Solution

The fourth proportional to 3,020.56, 4,167.84 and 1,900.68 is: 2,622.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,020.56 : 4,167.84 = 1,900.68 : x
  2. Step 2: Convert to fraction form
    3,020.56/4,167.84 = 1,900.68/x
  3. Step 3: Cross multiply
    3,020.56x = 4,167.84 × 1,900.68
  4. Step 4: Simplify right side
    3,020.56x = 7,921,730.13
  5. Step 5: Solve for x
    x = 7,921,730.13/3,020.56
  6. Step 6: Final answer
    x = 2,622.60

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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.