Home / 5,720.32-7,894.35-3,481.84

Finding the Fourth Proportional to 5,720.32, 7,894.35 and 3,481.84

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Solution

The fourth proportional to 5,720.32, 7,894.35 and 3,481.84 is: 4,805.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,720.32 : 7,894.35 = 3,481.84 : x
  2. Step 2: Convert to fraction form
    5,720.32/7,894.35 = 3,481.84/x
  3. Step 3: Cross multiply
    5,720.32x = 7,894.35 × 3,481.84
  4. Step 4: Simplify right side
    5,720.32x = 27,486,863.60
  5. Step 5: Solve for x
    x = 27,486,863.60/5,720.32
  6. Step 6: Final answer
    x = 4,805.13

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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.