Home / 1,403.50-2,104.26-709.66

Finding the Fourth Proportional to 1,403.50, 2,104.26 and 709.66

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Solution

The fourth proportional to 1,403.50, 2,104.26 and 709.66 is: 1,063.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,403.50 : 2,104.26 = 709.66 : x
  2. Step 2: Convert to fraction form
    1,403.50/2,104.26 = 709.66/x
  3. Step 3: Cross multiply
    1,403.50x = 2,104.26 × 709.66
  4. Step 4: Simplify right side
    1,403.50x = 1,493,309.15
  5. Step 5: Solve for x
    x = 1,493,309.15/1,403.50
  6. Step 6: Final answer
    x = 1,063.99

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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.