Home / 1,705.96-2,563.20-1,089.94

Finding the Fourth Proportional to 1,705.96, 2,563.20 and 1,089.94

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Solution

The fourth proportional to 1,705.96, 2,563.20 and 1,089.94 is: 1,637.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,705.96 : 2,563.20 = 1,089.94 : x
  2. Step 2: Convert to fraction form
    1,705.96/2,563.20 = 1,089.94/x
  3. Step 3: Cross multiply
    1,705.96x = 2,563.20 × 1,089.94
  4. Step 4: Simplify right side
    1,705.96x = 2,793,734.21
  5. Step 5: Solve for x
    x = 2,793,734.21/1,705.96
  6. Step 6: Final answer
    x = 1,637.63

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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.