Home / 1,455.96-2,180.75-1,225.31

Finding the Fourth Proportional to 1,455.96, 2,180.75 and 1,225.31

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Solution

The fourth proportional to 1,455.96, 2,180.75 and 1,225.31 is: 1,835.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,455.96 : 2,180.75 = 1,225.31 : x
  2. Step 2: Convert to fraction form
    1,455.96/2,180.75 = 1,225.31/x
  3. Step 3: Cross multiply
    1,455.96x = 2,180.75 × 1,225.31
  4. Step 4: Simplify right side
    1,455.96x = 2,672,077.75
  5. Step 5: Solve for x
    x = 2,672,077.75/1,455.96
  6. Step 6: Final answer
    x = 1,835.27

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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.