Home / 5,780.32-7,974.96-3,685.12

Finding the Fourth Proportional to 5,780.32, 7,974.96 and 3,685.12

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Solution

The fourth proportional to 5,780.32, 7,974.96 and 3,685.12 is: 5,084.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,780.32 : 7,974.96 = 3,685.12 : x
  2. Step 2: Convert to fraction form
    5,780.32/7,974.96 = 3,685.12/x
  3. Step 3: Cross multiply
    5,780.32x = 7,974.96 × 3,685.12
  4. Step 4: Simplify right side
    5,780.32x = 29,388,684.60
  5. Step 5: Solve for x
    x = 29,388,684.60/5,780.32
  6. Step 6: Final answer
    x = 5,084.27

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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.