Home / 1,780.65-2,456.94-1,034.49

Finding the Fourth Proportional to 1,780.65, 2,456.94 and 1,034.49

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Solution

The fourth proportional to 1,780.65, 2,456.94 and 1,034.49 is: 1,427.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,780.65 : 2,456.94 = 1,034.49 : x
  2. Step 2: Convert to fraction form
    1,780.65/2,456.94 = 1,034.49/x
  3. Step 3: Cross multiply
    1,780.65x = 2,456.94 × 1,034.49
  4. Step 4: Simplify right side
    1,780.65x = 2,541,679.86
  5. Step 5: Solve for x
    x = 2,541,679.86/1,780.65
  6. Step 6: Final answer
    x = 1,427.39

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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.