Home / 1,761.60-2,431.44-1,265.36

Finding the Fourth Proportional to 1,761.60, 2,431.44 and 1,265.36

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Solution

The fourth proportional to 1,761.60, 2,431.44 and 1,265.36 is: 1,746.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,761.60 : 2,431.44 = 1,265.36 : x
  2. Step 2: Convert to fraction form
    1,761.60/2,431.44 = 1,265.36/x
  3. Step 3: Cross multiply
    1,761.60x = 2,431.44 × 1,265.36
  4. Step 4: Simplify right side
    1,761.60x = 3,076,646.92
  5. Step 5: Solve for x
    x = 3,076,646.92/1,761.60
  6. Step 6: Final answer
    x = 1,746.51

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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.