Home / 5,080.81-7,012.16-2,842.81

Finding the Fourth Proportional to 5,080.81, 7,012.16 and 2,842.81

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Solution

The fourth proportional to 5,080.81, 7,012.16 and 2,842.81 is: 3,923.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,080.81 : 7,012.16 = 2,842.81 : x
  2. Step 2: Convert to fraction form
    5,080.81/7,012.16 = 2,842.81/x
  3. Step 3: Cross multiply
    5,080.81x = 7,012.16 × 2,842.81
  4. Step 4: Simplify right side
    5,080.81x = 19,934,238.57
  5. Step 5: Solve for x
    x = 19,934,238.57/5,080.81
  6. Step 6: Final answer
    x = 3,923.44

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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.