Home / 2,993.40-4,128.84-1,812.96

Finding the Fourth Proportional to 2,993.40, 4,128.84 and 1,812.96

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Solution

The fourth proportional to 2,993.40, 4,128.84 and 1,812.96 is: 2,500.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,993.40 : 4,128.84 = 1,812.96 : x
  2. Step 2: Convert to fraction form
    2,993.40/4,128.84 = 1,812.96/x
  3. Step 3: Cross multiply
    2,993.40x = 4,128.84 × 1,812.96
  4. Step 4: Simplify right side
    2,993.40x = 7,485,421.77
  5. Step 5: Solve for x
    x = 7,485,421.77/2,993.40
  6. Step 6: Final answer
    x = 2,500.64

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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.