Home / 5,053.15-7,580.75-2,131.46

Finding the Fourth Proportional to 5,053.15, 7,580.75 and 2,131.46

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Solution

The fourth proportional to 5,053.15, 7,580.75 and 2,131.46 is: 3,197.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,053.15 : 7,580.75 = 2,131.46 : x
  2. Step 2: Convert to fraction form
    5,053.15/7,580.75 = 2,131.46/x
  3. Step 3: Cross multiply
    5,053.15x = 7,580.75 × 2,131.46
  4. Step 4: Simplify right side
    5,053.15x = 16,158,054.74
  5. Step 5: Solve for x
    x = 16,158,054.74/5,053.15
  6. Step 6: Final answer
    x = 3,197.62

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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.