Home / 1,639.65-2,262.24-1,010.28

Finding the Fourth Proportional to 1,639.65, 2,262.24 and 1,010.28

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Solution

The fourth proportional to 1,639.65, 2,262.24 and 1,010.28 is: 1,393.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,639.65 : 2,262.24 = 1,010.28 : x
  2. Step 2: Convert to fraction form
    1,639.65/2,262.24 = 1,010.28/x
  3. Step 3: Cross multiply
    1,639.65x = 2,262.24 × 1,010.28
  4. Step 4: Simplify right side
    1,639.65x = 2,285,495.11
  5. Step 5: Solve for x
    x = 2,285,495.11/1,639.65
  6. Step 6: Final answer
    x = 1,393.89

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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.