Home / 5,130.75-7,695.42-2,008.59

Finding the Fourth Proportional to 5,130.75, 7,695.42 and 2,008.59

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Solution

The fourth proportional to 5,130.75, 7,695.42 and 2,008.59 is: 3,012.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,130.75 : 7,695.42 = 2,008.59 : x
  2. Step 2: Convert to fraction form
    5,130.75/7,695.42 = 2,008.59/x
  3. Step 3: Cross multiply
    5,130.75x = 7,695.42 × 2,008.59
  4. Step 4: Simplify right side
    5,130.75x = 15,456,943.66
  5. Step 5: Solve for x
    x = 15,456,943.66/5,130.75
  6. Step 6: Final answer
    x = 3,012.61

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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.