Home / 1,360.24-2,040.26-435.76

Finding the Fourth Proportional to 1,360.24, 2,040.26 and 435.76

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Solution

The fourth proportional to 1,360.24, 2,040.26 and 435.76 is: 653.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,360.24 : 2,040.26 = 435.76 : x
  2. Step 2: Convert to fraction form
    1,360.24/2,040.26 = 435.76/x
  3. Step 3: Cross multiply
    1,360.24x = 2,040.26 × 435.76
  4. Step 4: Simplify right side
    1,360.24x = 889,063.70
  5. Step 5: Solve for x
    x = 889,063.70/1,360.24
  6. Step 6: Final answer
    x = 653.61

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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.