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Finding the Fourth Proportional to 1,632.48, 2,252.81 and 886.43

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Solution

The fourth proportional to 1,632.48, 2,252.81 and 886.43 is: 1,223.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,632.48 : 2,252.81 = 886.43 : x
  2. Step 2: Convert to fraction form
    1,632.48/2,252.81 = 886.43/x
  3. Step 3: Cross multiply
    1,632.48x = 2,252.81 × 886.43
  4. Step 4: Simplify right side
    1,632.48x = 1,996,942.67
  5. Step 5: Solve for x
    x = 1,996,942.67/1,632.48
  6. Step 6: Final answer
    x = 1,223.26

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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.