Home / 3,190.85-4,786.28-1,547.64

Finding the Fourth Proportional to 3,190.85, 4,786.28 and 1,547.64

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Solution

The fourth proportional to 3,190.85, 4,786.28 and 1,547.64 is: 2,321.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,190.85 : 4,786.28 = 1,547.64 : x
  2. Step 2: Convert to fraction form
    3,190.85/4,786.28 = 1,547.64/x
  3. Step 3: Cross multiply
    3,190.85x = 4,786.28 × 1,547.64
  4. Step 4: Simplify right side
    3,190.85x = 7,407,440.80
  5. Step 5: Solve for x
    x = 7,407,440.80/3,190.85
  6. Step 6: Final answer
    x = 2,321.46

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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.