Home / 1,618.36-2,230.37-1,175.49

Finding the Fourth Proportional to 1,618.36, 2,230.37 and 1,175.49

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Solution

The fourth proportional to 1,618.36, 2,230.37 and 1,175.49 is: 1,620.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,618.36 : 2,230.37 = 1,175.49 : x
  2. Step 2: Convert to fraction form
    1,618.36/2,230.37 = 1,175.49/x
  3. Step 3: Cross multiply
    1,618.36x = 2,230.37 × 1,175.49
  4. Step 4: Simplify right side
    1,618.36x = 2,621,777.63
  5. Step 5: Solve for x
    x = 2,621,777.63/1,618.36
  6. Step 6: Final answer
    x = 1,620.02

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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.