Home / 1,780.29-2,451.60-1,741.95

Finding the Fourth Proportional to 1,780.29, 2,451.60 and 1,741.95

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Solution

The fourth proportional to 1,780.29, 2,451.60 and 1,741.95 is: 2,398.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,780.29 : 2,451.60 = 1,741.95 : x
  2. Step 2: Convert to fraction form
    1,780.29/2,451.60 = 1,741.95/x
  3. Step 3: Cross multiply
    1,780.29x = 2,451.60 × 1,741.95
  4. Step 4: Simplify right side
    1,780.29x = 4,270,564.62
  5. Step 5: Solve for x
    x = 4,270,564.62/1,780.29
  6. Step 6: Final answer
    x = 2,398.80

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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.