Home / 3,487.83-4,812.35-1,995.20

Finding the Fourth Proportional to 3,487.83, 4,812.35 and 1,995.20

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Solution

The fourth proportional to 3,487.83, 4,812.35 and 1,995.20 is: 2,752.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,487.83 : 4,812.35 = 1,995.20 : x
  2. Step 2: Convert to fraction form
    3,487.83/4,812.35 = 1,995.20/x
  3. Step 3: Cross multiply
    3,487.83x = 4,812.35 × 1,995.20
  4. Step 4: Simplify right side
    3,487.83x = 9,601,584.73
  5. Step 5: Solve for x
    x = 9,601,584.73/3,487.83
  6. Step 6: Final answer
    x = 2,752.89

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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.