Home / 5,159.88-7,121.16-3,036.24

Finding the Fourth Proportional to 5,159.88, 7,121.16 and 3,036.24

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Solution

The fourth proportional to 5,159.88, 7,121.16 and 3,036.24 is: 4,190.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,159.88 : 7,121.16 = 3,036.24 : x
  2. Step 2: Convert to fraction form
    5,159.88/7,121.16 = 3,036.24/x
  3. Step 3: Cross multiply
    5,159.88x = 7,121.16 × 3,036.24
  4. Step 4: Simplify right side
    5,159.88x = 21,621,550.84
  5. Step 5: Solve for x
    x = 21,621,550.84/5,159.88
  6. Step 6: Final answer
    x = 4,190.32

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1.5x scale

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.