Home / 1,775.21-2,663.96-1,190.87

Finding the Fourth Proportional to 1,775.21, 2,663.96 and 1,190.87

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Solution

The fourth proportional to 1,775.21, 2,663.96 and 1,190.87 is: 1,787.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,775.21 : 2,663.96 = 1,190.87 : x
  2. Step 2: Convert to fraction form
    1,775.21/2,663.96 = 1,190.87/x
  3. Step 3: Cross multiply
    1,775.21x = 2,663.96 × 1,190.87
  4. Step 4: Simplify right side
    1,775.21x = 3,172,430.05
  5. Step 5: Solve for x
    x = 3,172,430.05/1,775.21
  6. Step 6: Final answer
    x = 1,787.07

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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.