Home / 1,491.05-2,235.21-624.89

Finding the Fourth Proportional to 1,491.05, 2,235.21 and 624.89

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Solution

The fourth proportional to 1,491.05, 2,235.21 and 624.89 is: 936.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,491.05 : 2,235.21 = 624.89 : x
  2. Step 2: Convert to fraction form
    1,491.05/2,235.21 = 624.89/x
  3. Step 3: Cross multiply
    1,491.05x = 2,235.21 × 624.89
  4. Step 4: Simplify right side
    1,491.05x = 1,396,749.20
  5. Step 5: Solve for x
    x = 1,396,749.20/1,491.05
  6. Step 6: Final answer
    x = 936.76

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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.