Home / 1,450.16-2,172.50-719.34

Finding the Fourth Proportional to 1,450.16, 2,172.50 and 719.34

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Solution

The fourth proportional to 1,450.16, 2,172.50 and 719.34 is: 1,077.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,450.16 : 2,172.50 = 719.34 : x
  2. Step 2: Convert to fraction form
    1,450.16/2,172.50 = 719.34/x
  3. Step 3: Cross multiply
    1,450.16x = 2,172.50 × 719.34
  4. Step 4: Simplify right side
    1,450.16x = 1,562,766.15
  5. Step 5: Solve for x
    x = 1,562,766.15/1,450.16
  6. Step 6: Final answer
    x = 1,077.65

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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.