Home / 1,475.26-2,213.70-550.78

Finding the Fourth Proportional to 1,475.26, 2,213.70 and 550.78

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Solution

The fourth proportional to 1,475.26, 2,213.70 and 550.78 is: 826.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,475.26 : 2,213.70 = 550.78 : x
  2. Step 2: Convert to fraction form
    1,475.26/2,213.70 = 550.78/x
  3. Step 3: Cross multiply
    1,475.26x = 2,213.70 × 550.78
  4. Step 4: Simplify right side
    1,475.26x = 1,219,261.69
  5. Step 5: Solve for x
    x = 1,219,261.69/1,475.26
  6. Step 6: Final answer
    x = 826.47

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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.