Home / 1,638.43-2,441.54-1,632.35

Finding the Fourth Proportional to 1,638.43, 2,441.54 and 1,632.35

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Solution

The fourth proportional to 1,638.43, 2,441.54 and 1,632.35 is: 2,432.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638.43 : 2,441.54 = 1,632.35 : x
  2. Step 2: Convert to fraction form
    1,638.43/2,441.54 = 1,632.35/x
  3. Step 3: Cross multiply
    1,638.43x = 2,441.54 × 1,632.35
  4. Step 4: Simplify right side
    1,638.43x = 3,985,458.00
  5. Step 5: Solve for x
    x = 3,985,458.00/1,638.43
  6. Step 6: Final answer
    x = 2,432.49

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.