Home / 3,159.16-4,739.29-1,079.38

Finding the Fourth Proportional to 3,159.16, 4,739.29 and 1,079.38

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Solution

The fourth proportional to 3,159.16, 4,739.29 and 1,079.38 is: 1,619.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,159.16 : 4,739.29 = 1,079.38 : x
  2. Step 2: Convert to fraction form
    3,159.16/4,739.29 = 1,079.38/x
  3. Step 3: Cross multiply
    3,159.16x = 4,739.29 × 1,079.38
  4. Step 4: Simplify right side
    3,159.16x = 5,115,494.84
  5. Step 5: Solve for x
    x = 5,115,494.84/3,159.16
  6. Step 6: Final answer
    x = 1,619.26

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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.