Home / 1,490.19-2,233.21-1,269.67

Finding the Fourth Proportional to 1,490.19, 2,233.21 and 1,269.67

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Solution

The fourth proportional to 1,490.19, 2,233.21 and 1,269.67 is: 1,902.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490.19 : 2,233.21 = 1,269.67 : x
  2. Step 2: Convert to fraction form
    1,490.19/2,233.21 = 1,269.67/x
  3. Step 3: Cross multiply
    1,490.19x = 2,233.21 × 1,269.67
  4. Step 4: Simplify right side
    1,490.19x = 2,835,430.98
  5. Step 5: Solve for x
    x = 2,835,430.98/1,490.19
  6. Step 6: Final answer
    x = 1,902.73

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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.