Home / 3,022.40-4,171.08-1,902.92

Finding the Fourth Proportional to 3,022.40, 4,171.08 and 1,902.92

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Solution

The fourth proportional to 3,022.40, 4,171.08 and 1,902.92 is: 2,626.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,022.40 : 4,171.08 = 1,902.92 : x
  2. Step 2: Convert to fraction form
    3,022.40/4,171.08 = 1,902.92/x
  3. Step 3: Cross multiply
    3,022.40x = 4,171.08 × 1,902.92
  4. Step 4: Simplify right side
    3,022.40x = 7,937,231.55
  5. Step 5: Solve for x
    x = 7,937,231.55/3,022.40
  6. Step 6: Final answer
    x = 2,626.14

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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.