Home / 3,987.58-5,979.36-2,322.24

Finding the Fourth Proportional to 3,987.58, 5,979.36 and 2,322.24

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Solution

The fourth proportional to 3,987.58, 5,979.36 and 2,322.24 is: 3,482.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,987.58 : 5,979.36 = 2,322.24 : x
  2. Step 2: Convert to fraction form
    3,987.58/5,979.36 = 2,322.24/x
  3. Step 3: Cross multiply
    3,987.58x = 5,979.36 × 2,322.24
  4. Step 4: Simplify right side
    3,987.58x = 13,885,508.97
  5. Step 5: Solve for x
    x = 13,885,508.97/3,987.58
  6. Step 6: Final answer
    x = 3,482.19

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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.