Home / 5,216.68-7,199.60-2,979.12

Finding the Fourth Proportional to 5,216.68, 7,199.60 and 2,979.12

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Solution

The fourth proportional to 5,216.68, 7,199.60 and 2,979.12 is: 4,111.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,216.68 : 7,199.60 = 2,979.12 : x
  2. Step 2: Convert to fraction form
    5,216.68/7,199.60 = 2,979.12/x
  3. Step 3: Cross multiply
    5,216.68x = 7,199.60 × 2,979.12
  4. Step 4: Simplify right side
    5,216.68x = 21,448,472.35
  5. Step 5: Solve for x
    x = 21,448,472.35/5,216.68
  6. Step 6: Final answer
    x = 4,111.52

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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.