Home / 1,780.23-2,670.36-1,167.82

Finding the Fourth Proportional to 1,780.23, 2,670.36 and 1,167.82

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Solution

The fourth proportional to 1,780.23, 2,670.36 and 1,167.82 is: 1,751.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,780.23 : 2,670.36 = 1,167.82 : x
  2. Step 2: Convert to fraction form
    1,780.23/2,670.36 = 1,167.82/x
  3. Step 3: Cross multiply
    1,780.23x = 2,670.36 × 1,167.82
  4. Step 4: Simplify right side
    1,780.23x = 3,118,499.82
  5. Step 5: Solve for x
    x = 3,118,499.82/1,780.23
  6. Step 6: Final answer
    x = 1,751.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.