Home / 1,450.11-2,170.58-929.42

Finding the Fourth Proportional to 1,450.11, 2,170.58 and 929.42

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Solution

The fourth proportional to 1,450.11, 2,170.58 and 929.42 is: 1,391.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,450.11 : 2,170.58 = 929.42 : x
  2. Step 2: Convert to fraction form
    1,450.11/2,170.58 = 929.42/x
  3. Step 3: Cross multiply
    1,450.11x = 2,170.58 × 929.42
  4. Step 4: Simplify right side
    1,450.11x = 2,017,364.96
  5. Step 5: Solve for x
    x = 2,017,364.96/1,450.11
  6. Step 6: Final answer
    x = 1,391.18

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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.