Home / 1,620.33-2,430.51-1,043.61

Finding the Fourth Proportional to 1,620.33, 2,430.51 and 1,043.61

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Solution

The fourth proportional to 1,620.33, 2,430.51 and 1,043.61 is: 1,565.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,620.33 : 2,430.51 = 1,043.61 : x
  2. Step 2: Convert to fraction form
    1,620.33/2,430.51 = 1,043.61/x
  3. Step 3: Cross multiply
    1,620.33x = 2,430.51 × 1,043.61
  4. Step 4: Simplify right side
    1,620.33x = 2,536,504.54
  5. Step 5: Solve for x
    x = 2,536,504.54/1,620.33
  6. Step 6: Final answer
    x = 1,565.42

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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.