Home / 1,650.96-2,272.30-1,318.32

Finding the Fourth Proportional to 1,650.96, 2,272.30 and 1,318.32

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Solution

The fourth proportional to 1,650.96, 2,272.30 and 1,318.32 is: 1,814.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,650.96 : 2,272.30 = 1,318.32 : x
  2. Step 2: Convert to fraction form
    1,650.96/2,272.30 = 1,318.32/x
  3. Step 3: Cross multiply
    1,650.96x = 2,272.30 × 1,318.32
  4. Step 4: Simplify right side
    1,650.96x = 2,995,618.54
  5. Step 5: Solve for x
    x = 2,995,618.54/1,650.96
  6. Step 6: Final answer
    x = 1,814.47

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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.