Home / 1,646.29-2,272.71-1,272.43

Finding the Fourth Proportional to 1,646.29, 2,272.71 and 1,272.43

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Solution

The fourth proportional to 1,646.29, 2,272.71 and 1,272.43 is: 1,756.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,646.29 : 2,272.71 = 1,272.43 : x
  2. Step 2: Convert to fraction form
    1,646.29/2,272.71 = 1,272.43/x
  3. Step 3: Cross multiply
    1,646.29x = 2,272.71 × 1,272.43
  4. Step 4: Simplify right side
    1,646.29x = 2,891,852.06
  5. Step 5: Solve for x
    x = 2,891,852.06/1,646.29
  6. Step 6: Final answer
    x = 1,756.59

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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.