Home / 5,131.75-7,697.34-2,012.31

Finding the Fourth Proportional to 5,131.75, 7,697.34 and 2,012.31

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Solution

The fourth proportional to 5,131.75, 7,697.34 and 2,012.31 is: 3,018.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,131.75 : 7,697.34 = 2,012.31 : x
  2. Step 2: Convert to fraction form
    5,131.75/7,697.34 = 2,012.31/x
  3. Step 3: Cross multiply
    5,131.75x = 7,697.34 × 2,012.31
  4. Step 4: Simplify right side
    5,131.75x = 15,489,385.71
  5. Step 5: Solve for x
    x = 15,489,385.71/5,131.75
  6. Step 6: Final answer
    x = 3,018.35

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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.