Home / 2,188.20-3,283.10-1,147.08

Finding the Fourth Proportional to 2,188.20, 3,283.10 and 1,147.08

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Solution

The fourth proportional to 2,188.20, 3,283.10 and 1,147.08 is: 1,721.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,188.20 : 3,283.10 = 1,147.08 : x
  2. Step 2: Convert to fraction form
    2,188.20/3,283.10 = 1,147.08/x
  3. Step 3: Cross multiply
    2,188.20x = 3,283.10 × 1,147.08
  4. Step 4: Simplify right side
    2,188.20x = 3,765,978.35
  5. Step 5: Solve for x
    x = 3,765,978.35/2,188.20
  6. Step 6: Final answer
    x = 1,721.04

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1.5x scale

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.