Home / 4,215.53-6,322.39-2,979.42

Finding the Fourth Proportional to 4,215.53, 6,322.39 and 2,979.42

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Solution

The fourth proportional to 4,215.53, 6,322.39 and 2,979.42 is: 4,468.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,215.53 : 6,322.39 = 2,979.42 : x
  2. Step 2: Convert to fraction form
    4,215.53/6,322.39 = 2,979.42/x
  3. Step 3: Cross multiply
    4,215.53x = 6,322.39 × 2,979.42
  4. Step 4: Simplify right side
    4,215.53x = 18,837,055.21
  5. Step 5: Solve for x
    x = 18,837,055.21/4,215.53
  6. Step 6: Final answer
    x = 4,468.49

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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.