Home / 1,435.37-2,151.23-1,240.36

Finding the Fourth Proportional to 1,435.37, 2,151.23 and 1,240.36

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Solution

The fourth proportional to 1,435.37, 2,151.23 and 1,240.36 is: 1,858.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,435.37 : 2,151.23 = 1,240.36 : x
  2. Step 2: Convert to fraction form
    1,435.37/2,151.23 = 1,240.36/x
  3. Step 3: Cross multiply
    1,435.37x = 2,151.23 × 1,240.36
  4. Step 4: Simplify right side
    1,435.37x = 2,668,310.63
  5. Step 5: Solve for x
    x = 2,668,310.63/1,435.37
  6. Step 6: Final answer
    x = 1,858.97

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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.