Home / 5,159.60-7,120.32-3,036.56

Finding the Fourth Proportional to 5,159.60, 7,120.32 and 3,036.56

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Solution

The fourth proportional to 5,159.60, 7,120.32 and 3,036.56 is: 4,190.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,159.60 : 7,120.32 = 3,036.56 : x
  2. Step 2: Convert to fraction form
    5,159.60/7,120.32 = 3,036.56/x
  3. Step 3: Cross multiply
    5,159.60x = 7,120.32 × 3,036.56
  4. Step 4: Simplify right side
    5,159.60x = 21,621,278.90
  5. Step 5: Solve for x
    x = 21,621,278.90/5,159.60
  6. Step 6: Final answer
    x = 4,190.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.