Home / 1,435.36-2,153.13-1,418.95

Finding the Fourth Proportional to 1,435.36, 2,153.13 and 1,418.95

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Solution

The fourth proportional to 1,435.36, 2,153.13 and 1,418.95 is: 2,128.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,435.36 : 2,153.13 = 1,418.95 : x
  2. Step 2: Convert to fraction form
    1,435.36/2,153.13 = 1,418.95/x
  3. Step 3: Cross multiply
    1,435.36x = 2,153.13 × 1,418.95
  4. Step 4: Simplify right side
    1,435.36x = 3,055,183.81
  5. Step 5: Solve for x
    x = 3,055,183.81/1,435.36
  6. Step 6: Final answer
    x = 2,128.51

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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.