Home / 3,159.15-4,739.51-1,427.31

Finding the Fourth Proportional to 3,159.15, 4,739.51 and 1,427.31

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Solution

The fourth proportional to 3,159.15, 4,739.51 and 1,427.31 is: 2,141.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,159.15 : 4,739.51 = 1,427.31 : x
  2. Step 2: Convert to fraction form
    3,159.15/4,739.51 = 1,427.31/x
  3. Step 3: Cross multiply
    3,159.15x = 4,739.51 × 1,427.31
  4. Step 4: Simplify right side
    3,159.15x = 6,764,742.88
  5. Step 5: Solve for x
    x = 6,764,742.88/3,159.15
  6. Step 6: Final answer
    x = 2,141.32

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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.