Home / 1,709.23-2,360.70-1,122.37

Finding the Fourth Proportional to 1,709.23, 2,360.70 and 1,122.37

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Solution

The fourth proportional to 1,709.23, 2,360.70 and 1,122.37 is: 1,550.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,709.23 : 2,360.70 = 1,122.37 : x
  2. Step 2: Convert to fraction form
    1,709.23/2,360.70 = 1,122.37/x
  3. Step 3: Cross multiply
    1,709.23x = 2,360.70 × 1,122.37
  4. Step 4: Simplify right side
    1,709.23x = 2,649,578.86
  5. Step 5: Solve for x
    x = 2,649,578.86/1,709.23
  6. Step 6: Final answer
    x = 1,550.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.