Home / 1,689.89-2,332.05-1,026.62

Finding the Fourth Proportional to 1,689.89, 2,332.05 and 1,026.62

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Solution

The fourth proportional to 1,689.89, 2,332.05 and 1,026.62 is: 1,416.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,689.89 : 2,332.05 = 1,026.62 : x
  2. Step 2: Convert to fraction form
    1,689.89/2,332.05 = 1,026.62/x
  3. Step 3: Cross multiply
    1,689.89x = 2,332.05 × 1,026.62
  4. Step 4: Simplify right side
    1,689.89x = 2,394,118.73
  5. Step 5: Solve for x
    x = 2,394,118.73/1,689.89
  6. Step 6: Final answer
    x = 1,416.73

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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.