Home / 3,127.31-4,686.90-2,796.33

Finding the Fourth Proportional to 3,127.31, 4,686.90 and 2,796.33

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Solution

The fourth proportional to 3,127.31, 4,686.90 and 2,796.33 is: 4,190.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,127.31 : 4,686.90 = 2,796.33 : x
  2. Step 2: Convert to fraction form
    3,127.31/4,686.90 = 2,796.33/x
  3. Step 3: Cross multiply
    3,127.31x = 4,686.90 × 2,796.33
  4. Step 4: Simplify right side
    3,127.31x = 13,106,119.08
  5. Step 5: Solve for x
    x = 13,106,119.08/3,127.31
  6. Step 6: Final answer
    x = 4,190.86

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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.