Home / 5,080.36-7,621.32-2,159.44

Finding the Fourth Proportional to 5,080.36, 7,621.32 and 2,159.44

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Solution

The fourth proportional to 5,080.36, 7,621.32 and 2,159.44 is: 3,239.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,080.36 : 7,621.32 = 2,159.44 : x
  2. Step 2: Convert to fraction form
    5,080.36/7,621.32 = 2,159.44/x
  3. Step 3: Cross multiply
    5,080.36x = 7,621.32 × 2,159.44
  4. Step 4: Simplify right side
    5,080.36x = 16,457,783.26
  5. Step 5: Solve for x
    x = 16,457,783.26/5,080.36
  6. Step 6: Final answer
    x = 3,239.49

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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.