Home / 1,639.52-2,262.37-1,009.95

Finding the Fourth Proportional to 1,639.52, 2,262.37 and 1,009.95

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Solution

The fourth proportional to 1,639.52, 2,262.37 and 1,009.95 is: 1,393.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,639.52 : 2,262.37 = 1,009.95 : x
  2. Step 2: Convert to fraction form
    1,639.52/2,262.37 = 1,009.95/x
  3. Step 3: Cross multiply
    1,639.52x = 2,262.37 × 1,009.95
  4. Step 4: Simplify right side
    1,639.52x = 2,284,880.58
  5. Step 5: Solve for x
    x = 2,284,880.58/1,639.52
  6. Step 6: Final answer
    x = 1,393.63

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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.