Home / 1,450.36-2,170.95-929.67

Finding the Fourth Proportional to 1,450.36, 2,170.95 and 929.67

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Solution

The fourth proportional to 1,450.36, 2,170.95 and 929.67 is: 1,391.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,450.36 : 2,170.95 = 929.67 : x
  2. Step 2: Convert to fraction form
    1,450.36/2,170.95 = 929.67/x
  3. Step 3: Cross multiply
    1,450.36x = 2,170.95 × 929.67
  4. Step 4: Simplify right side
    1,450.36x = 2,018,267.09
  5. Step 5: Solve for x
    x = 2,018,267.09/1,450.36
  6. Step 6: Final answer
    x = 1,391.56

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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.