Home / 2,753.30-4,128.91-1,193.20

Finding the Fourth Proportional to 2,753.30, 4,128.91 and 1,193.20

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Solution

The fourth proportional to 2,753.30, 4,128.91 and 1,193.20 is: 1,789.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,753.30 : 4,128.91 = 1,193.20 : x
  2. Step 2: Convert to fraction form
    2,753.30/4,128.91 = 1,193.20/x
  3. Step 3: Cross multiply
    2,753.30x = 4,128.91 × 1,193.20
  4. Step 4: Simplify right side
    2,753.30x = 4,926,615.41
  5. Step 5: Solve for x
    x = 4,926,615.41/2,753.30
  6. Step 6: Final answer
    x = 1,789.35

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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.