Home / 1,427.77-2,142.75-1,150.80

Finding the Fourth Proportional to 1,427.77, 2,142.75 and 1,150.80

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Solution

The fourth proportional to 1,427.77, 2,142.75 and 1,150.80 is: 1,727.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427.77 : 2,142.75 = 1,150.80 : x
  2. Step 2: Convert to fraction form
    1,427.77/2,142.75 = 1,150.80/x
  3. Step 3: Cross multiply
    1,427.77x = 2,142.75 × 1,150.80
  4. Step 4: Simplify right side
    1,427.77x = 2,465,876.70
  5. Step 5: Solve for x
    x = 2,465,876.70/1,427.77
  6. Step 6: Final answer
    x = 1,727.08

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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.