Home / 1,640.32-2,446.01-1,625.68

Finding the Fourth Proportional to 1,640.32, 2,446.01 and 1,625.68

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Solution

The fourth proportional to 1,640.32, 2,446.01 and 1,625.68 is: 2,424.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640.32 : 2,446.01 = 1,625.68 : x
  2. Step 2: Convert to fraction form
    1,640.32/2,446.01 = 1,625.68/x
  3. Step 3: Cross multiply
    1,640.32x = 2,446.01 × 1,625.68
  4. Step 4: Simplify right side
    1,640.32x = 3,976,429.54
  5. Step 5: Solve for x
    x = 3,976,429.54/1,640.32
  6. Step 6: Final answer
    x = 2,424.18

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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.