Home / 1,639.22-2,262.14-893.18

Finding the Fourth Proportional to 1,639.22, 2,262.14 and 893.18

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Solution

The fourth proportional to 1,639.22, 2,262.14 and 893.18 is: 1,232.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,639.22 : 2,262.14 = 893.18 : x
  2. Step 2: Convert to fraction form
    1,639.22/2,262.14 = 893.18/x
  3. Step 3: Cross multiply
    1,639.22x = 2,262.14 × 893.18
  4. Step 4: Simplify right side
    1,639.22x = 2,020,495.04
  5. Step 5: Solve for x
    x = 2,020,495.04/1,639.22
  6. Step 6: Final answer
    x = 1,232.59

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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.