Home / 1,634.82-2,255.40-1,045.68

Finding the Fourth Proportional to 1,634.82, 2,255.40 and 1,045.68

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Solution

The fourth proportional to 1,634.82, 2,255.40 and 1,045.68 is: 1,442.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,634.82 : 2,255.40 = 1,045.68 : x
  2. Step 2: Convert to fraction form
    1,634.82/2,255.40 = 1,045.68/x
  3. Step 3: Cross multiply
    1,634.82x = 2,255.40 × 1,045.68
  4. Step 4: Simplify right side
    1,634.82x = 2,358,426.67
  5. Step 5: Solve for x
    x = 2,358,426.67/1,634.82
  6. Step 6: Final answer
    x = 1,442.62

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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.