Home / 1,404.18-2,106.26-633.78

Finding the Fourth Proportional to 1,404.18, 2,106.26 and 633.78

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Solution

The fourth proportional to 1,404.18, 2,106.26 and 633.78 is: 950.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,404.18 : 2,106.26 = 633.78 : x
  2. Step 2: Convert to fraction form
    1,404.18/2,106.26 = 633.78/x
  3. Step 3: Cross multiply
    1,404.18x = 2,106.26 × 633.78
  4. Step 4: Simplify right side
    1,404.18x = 1,334,902.29
  5. Step 5: Solve for x
    x = 1,334,902.29/1,404.18
  6. Step 6: Final answer
    x = 950.66

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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.