Home / 3,621.58-5,426.10-1,979.26

Finding the Fourth Proportional to 3,621.58, 5,426.10 and 1,979.26

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Solution

The fourth proportional to 3,621.58, 5,426.10 and 1,979.26 is: 2,965.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,621.58 : 5,426.10 = 1,979.26 : x
  2. Step 2: Convert to fraction form
    3,621.58/5,426.10 = 1,979.26/x
  3. Step 3: Cross multiply
    3,621.58x = 5,426.10 × 1,979.26
  4. Step 4: Simplify right side
    3,621.58x = 10,739,662.69
  5. Step 5: Solve for x
    x = 10,739,662.69/3,621.58
  6. Step 6: Final answer
    x = 2,965.46

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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.