Home / 5,286.28-7,293.36-3,518.16

Finding the Fourth Proportional to 5,286.28, 7,293.36 and 3,518.16

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Solution

The fourth proportional to 5,286.28, 7,293.36 and 3,518.16 is: 4,853.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,286.28 : 7,293.36 = 3,518.16 : x
  2. Step 2: Convert to fraction form
    5,286.28/7,293.36 = 3,518.16/x
  3. Step 3: Cross multiply
    5,286.28x = 7,293.36 × 3,518.16
  4. Step 4: Simplify right side
    5,286.28x = 25,659,207.42
  5. Step 5: Solve for x
    x = 25,659,207.42/5,286.28
  6. Step 6: Final answer
    x = 4,853.93

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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.