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Finding the Fourth Proportional to 3,159.44, 4,739.70 and 1,079.33

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Solution

The fourth proportional to 3,159.44, 4,739.70 and 1,079.33 is: 1,619.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,159.44 : 4,739.70 = 1,079.33 : x
  2. Step 2: Convert to fraction form
    3,159.44/4,739.70 = 1,079.33/x
  3. Step 3: Cross multiply
    3,159.44x = 4,739.70 × 1,079.33
  4. Step 4: Simplify right side
    3,159.44x = 5,115,700.40
  5. Step 5: Solve for x
    x = 5,115,700.40/3,159.44
  6. Step 6: Final answer
    x = 1,619.18

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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.