Home / 3,975.84-5,468.40-3,188.16

Finding the Fourth Proportional to 3,975.84, 5,468.40 and 3,188.16

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Solution

The fourth proportional to 3,975.84, 5,468.40 and 3,188.16 is: 4,385.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,975.84 : 5,468.40 = 3,188.16 : x
  2. Step 2: Convert to fraction form
    3,975.84/5,468.40 = 3,188.16/x
  3. Step 3: Cross multiply
    3,975.84x = 5,468.40 × 3,188.16
  4. Step 4: Simplify right side
    3,975.84x = 17,434,134.14
  5. Step 5: Solve for x
    x = 17,434,134.14/3,975.84
  6. Step 6: Final answer
    x = 4,385.02

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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.