Home / 1,616.48-2,231.57-1,144.75

Finding the Fourth Proportional to 1,616.48, 2,231.57 and 1,144.75

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Solution

The fourth proportional to 1,616.48, 2,231.57 and 1,144.75 is: 1,580.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,616.48 : 2,231.57 = 1,144.75 : x
  2. Step 2: Convert to fraction form
    1,616.48/2,231.57 = 1,144.75/x
  3. Step 3: Cross multiply
    1,616.48x = 2,231.57 × 1,144.75
  4. Step 4: Simplify right side
    1,616.48x = 2,554,589.76
  5. Step 5: Solve for x
    x = 2,554,589.76/1,616.48
  6. Step 6: Final answer
    x = 1,580.34

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Half scale
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Find fourth proportional to 1,617.48, 2,232.95 and 1,145.75
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1.5x scale

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.