Home / 1,705.24-2,354.56-1,331.56

Finding the Fourth Proportional to 1,705.24, 2,354.56 and 1,331.56

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Solution

The fourth proportional to 1,705.24, 2,354.56 and 1,331.56 is: 1,838.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,705.24 : 2,354.56 = 1,331.56 : x
  2. Step 2: Convert to fraction form
    1,705.24/2,354.56 = 1,331.56/x
  3. Step 3: Cross multiply
    1,705.24x = 2,354.56 × 1,331.56
  4. Step 4: Simplify right side
    1,705.24x = 3,135,237.53
  5. Step 5: Solve for x
    x = 3,135,237.53/1,705.24
  6. Step 6: Final answer
    x = 1,838.59

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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.