Home / 1,929.24-2,661-1,265.88

Finding the Fourth Proportional to 1,929.24, 2,661 and 1,265.88

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Solution

The fourth proportional to 1,929.24, 2,661 and 1,265.88 is: 1,746.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,929.24 : 2,661 = 1,265.88 : x
  2. Step 2: Convert to fraction form
    1,929.24/2,661 = 1,265.88/x
  3. Step 3: Cross multiply
    1,929.24x = 2,661 × 1,265.88
  4. Step 4: Simplify right side
    1,929.24x = 3,368,506.68
  5. Step 5: Solve for x
    x = 3,368,506.68/1,929.24
  6. Step 6: Final answer
    x = 1,746.03

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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.