Home / 2,752.24-4,128.21-903.11

Finding the Fourth Proportional to 2,752.24, 4,128.21 and 903.11

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Solution

The fourth proportional to 2,752.24, 4,128.21 and 903.11 is: 1,354.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,752.24 : 4,128.21 = 903.11 : x
  2. Step 2: Convert to fraction form
    2,752.24/4,128.21 = 903.11/x
  3. Step 3: Cross multiply
    2,752.24x = 4,128.21 × 903.11
  4. Step 4: Simplify right side
    2,752.24x = 3,728,227.73
  5. Step 5: Solve for x
    x = 3,728,227.73/2,752.24
  6. Step 6: Final answer
    x = 1,354.62

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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.