Home / 3,159.60-4,741.50-1,107.60

Finding the Fourth Proportional to 3,159.60, 4,741.50 and 1,107.60

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Solution

The fourth proportional to 3,159.60, 4,741.50 and 1,107.60 is: 1,662.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,159.60 : 4,741.50 = 1,107.60 : x
  2. Step 2: Convert to fraction form
    3,159.60/4,741.50 = 1,107.60/x
  3. Step 3: Cross multiply
    3,159.60x = 4,741.50 × 1,107.60
  4. Step 4: Simplify right side
    3,159.60x = 5,251,685.40
  5. Step 5: Solve for x
    x = 5,251,685.40/3,159.60
  6. Step 6: Final answer
    x = 1,662.14

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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.