Home / 2,007.60-3,011.40-1,679.55

Finding the Fourth Proportional to 2,007.60, 3,011.40 and 1,679.55

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Solution

The fourth proportional to 2,007.60, 3,011.40 and 1,679.55 is: 2,519.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,007.60 : 3,011.40 = 1,679.55 : x
  2. Step 2: Convert to fraction form
    2,007.60/3,011.40 = 1,679.55/x
  3. Step 3: Cross multiply
    2,007.60x = 3,011.40 × 1,679.55
  4. Step 4: Simplify right side
    2,007.60x = 5,057,796.87
  5. Step 5: Solve for x
    x = 5,057,796.87/2,007.60
  6. Step 6: Final answer
    x = 2,519.33

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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.