Home / 3,984.08-5,497.86-2,215.64

Finding the Fourth Proportional to 3,984.08, 5,497.86 and 2,215.64

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Solution

The fourth proportional to 3,984.08, 5,497.86 and 2,215.64 is: 3,057.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,984.08 : 5,497.86 = 2,215.64 : x
  2. Step 2: Convert to fraction form
    3,984.08/5,497.86 = 2,215.64/x
  3. Step 3: Cross multiply
    3,984.08x = 5,497.86 × 2,215.64
  4. Step 4: Simplify right side
    3,984.08x = 12,181,278.53
  5. Step 5: Solve for x
    x = 12,181,278.53/3,984.08
  6. Step 6: Final answer
    x = 3,057.49

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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.